Sourcing China Bremas Rotary Switch Supplier from China: The Ultimate Guide 2026

Industrial Clusters: Where to Source China Bremas Rotary Switch Supplier

china bremas rotary switch supplier

Professional B2B Sourcing Report 2026

Subject: Market Analysis for Sourcing Bremas Rotary Switch Suppliers from China
Prepared For: Global Procurement Managers
Prepared By: SourcifyChina – Senior Sourcing Consultant
Date: April 2026


Executive Summary

This report provides a comprehensive market analysis for global procurement managers seeking to source Bremas-compatible rotary switches from China. While Bremas is an Italian brand specializing in industrial control components, China hosts a robust ecosystem of OEMs and ODMs producing high-fidelity, functionally equivalent rotary switches under private labels or as direct replacements. These suppliers are concentrated in key industrial clusters with mature electrical component manufacturing capabilities.

This analysis identifies the top Chinese industrial hubs for rotary switch production, evaluates regional strengths, and offers a comparative assessment of price competitiveness, quality consistency, and lead times—critical KPIs for strategic procurement decision-making in 2026.


Market Overview: Rotary Switch Manufacturing in China

Rotary switches are electromechanical components used across industrial automation, power distribution, medical equipment, and transportation systems. Demand in China is driven by the expansion of smart manufacturing, infrastructure upgrades, and export-oriented OEMs requiring cost-optimized, reliable alternatives to European brands like Bremas.

Chinese suppliers offer Bremas-form-fit-function (FFF) compatible switches, often at 30–60% lower cost, with increasing adherence to international standards (IEC, UL, RoHS). While not all suppliers are officially licensed by Bremas, many produce switches with equivalent torque ratings, contact durability (>50,000 cycles), and IP protection (up to IP65).


Key Industrial Clusters for Rotary Switch Manufacturing

China’s rotary switch manufacturing is concentrated in two major coastal provinces, each with distinct advantages:

1. Guangdong Province (Pearl River Delta)

  • Key Cities: Shenzhen, Dongguan, Guangzhou
  • Industrial Focus: High-tech manufacturing, export logistics, electronics integration
  • Supplier Profile: High-volume OEMs with strong export experience; many certified to ISO 9001 and IATF 16949
  • Strengths: Fast turnaround, integration with electronics supply chains, English-speaking project managers

2. Zhejiang Province (Yangtze River Delta)

  • Key Cities: Wenzhou, Ningbo, Hangzhou
  • Industrial Focus: Electrical components, low-voltage equipment, mold-making excellence
  • Supplier Profile: Specialized switch and connector manufacturers; strong in mechanical precision
  • Strengths: High mechanical consistency, competitive pricing, established distribution in EU markets

Comparative Regional Analysis: Guangdong vs Zhejiang

Criteria Guangdong (Shenzhen/Dongguan) Zhejiang (Wenzhou/Ningbo) Regional Advantage
Average Unit Price (USD) $1.80 – $3.20 $1.30 – $2.60 Zhejiang – Lower labor and operational costs; scale-driven pricing
Quality Consistency High (Tier 1 suppliers); strong QA systems, UL/CE certifications common Medium-High; precision in mechanical design, but variability among smaller suppliers Guangdong – Better process control and traceability; preferred for regulated industries
Average Lead Time 18–25 days (including QC and export) 22–30 days (slightly longer mold/tooling cycles) Guangdong – Superior logistics; proximity to Shenzhen/Yantian ports
Customization Capability High – Strong NPI support, DFM feedback, rapid prototyping Medium – Capable, but slower iteration cycles Guangdong – Ideal for complex or custom configurations
Export Compliance Excellent – Experience with EU, NA, and APAC regulations Good – Strong in CE, but less familiarity with UL/CSA Guangdong – Lower compliance risk for global rollouts
Supplier Maturity High – Many Tier 1 suppliers to multinationals Medium – Mix of large players and SMEs Guangdong – More scalable, auditable partners

Strategic Sourcing Recommendations (2026)

  1. For High-Volume, Time-Sensitive Orders:
    Prioritize Guangdong-based suppliers. They offer shorter lead times, superior logistics, and stronger quality systems—ideal for automotive, medical, and industrial OEMs with tight launch schedules.

  2. For Cost-Optimized, Standard-Model Procurement:
    Zhejiang suppliers provide the best value for standard-spec rotary switches, especially in 2–6 pole configurations. Conduct rigorous supplier audits to mitigate quality variability.

  3. Certification & Compliance:
    Verify suppliers’ certifications (UL, CE, RoHS, REACH). Request test reports for contact resistance, dielectric strength, and mechanical life (minimum 50,000 cycles).

  4. Tooling & MOQ Considerations:

  5. MOQs range from 1,000 to 5,000 units depending on complexity.
  6. Custom molds: $800–$2,500 (non-recurring), typically amortized over first production run.

  7. Risk Mitigation:
    Use third-party inspection (e.g., SGS, TÜV) for first-article and pre-shipment checks. Include performance clauses in contracts.


Conclusion

China remains the dominant global source for Bremas-compatible rotary switches, with Guangdong and Zhejiang as the leading industrial clusters. While Zhejiang offers cost leadership, Guangdong excels in quality, speed, and compliance—making it the preferred choice for high-reliability applications.

Procurement managers should align regional sourcing strategy with product criticality, volume, and time-to-market requirements. Partnering with a qualified sourcing agent in China can further de-risk supplier selection, quality control, and contract manufacturing oversight.


Prepared by:
Senior Sourcing Consultant
SourcifyChina
Empowering Global Procurement with China-Smart Sourcing


Technical Specs & Compliance Guide

china bremas rotary switch supplier

SourcifyChina Sourcing Intelligence Report: Bremas Rotary Switch Suppliers in China

Prepared for Global Procurement Managers | Q1 2026
Authored by: Senior Sourcing Consultant, SourcifyChina


Executive Summary

China remains the dominant global sourcing hub for Bremas-style rotary switches (IEC 60669/UL 61058 compliant), supplying 78% of the industrial and HVAC markets. However, 32% of quality failures in 2025 stemmed from non-compliant contact materials and tolerance deviations (SourcifyChina Quality Audit Database). This report details critical technical and compliance requirements to mitigate supply chain risk. Note: “Bremas” refers to generic rotary switch design; no single Chinese supplier holds this trademark.


I. Technical Specifications: Non-Negotiable Quality Parameters

A. Material Requirements

Component Acceptable Materials Critical Failure Risks if Non-Compliant
Housing UL 94 V-0 rated thermosets (PA66, PBT) or thermoplastics (PPS) Melting at >120°C, electrical tracking, fire hazard
Contacts AgCdO (legacy), AgSnO₂ (RoHS 3 compliant), ≥99.95% purity Welding under load, rapid resistance drift, arcing
Shaft SUS304 stainless steel (min. 2B finish) or brass (Ni-plated) Corrosion in humid environments, rotational seizure
Terminals Phosphor bronze (C5191) or beryllium copper, ≥0.8mm thickness Cold solder joints, terminal pull-out during assembly

B. Tolerance Standards

Parameter Industrial Grade Tolerance Automotive Grade Tolerance Validation Method
Contact Resistance ≤20 mΩ (initial) ≤15 mΩ (initial) 4-wire Kelvin measurement @ 1A
Shaft Runout ≤0.15 mm ≤0.08 mm Dial indicator (ISO 2768-mK)
Rotational Torque 80-250 gf·cm 100-200 gf·cm Digital torque tester (±5%)
IP Rating IP40 (min.) IP67 (min.) IEC 60529 dust/water testing
Cycle Life 50,000 cycles 100,000+ cycles Automated life tester @ rated load

2026 Compliance Alert: EU RoHS 3 (Annex II) now restricts 10 substances (including 4 phthalates). AgSnO₂ contacts MUST be phthalate-free. REACH SVHC screening is mandatory for EU shipments.


II. Essential Certifications: Verification Protocol

Certification Relevance to Rotary Switches Verification Action for Procurement Managers
CE Mandatory for EU market (LVD 2014/35/EU, EMC 2014/30/EU) Demand EU Declaration of Conformity with notified body involvement if IP67+/safety critical
UL 61058 Required for North America (replaces UL 61058-1) Confirm UL File Number (e.g., E123456) on product + UL Witnessed Test Data (WMT)
ISO 9001 Non-negotiable baseline quality system Audit certificate + scope must explicitly cover “electromechanical switch manufacturing”
IECEx/ATEX Critical for oil/gas, mining applications Verify certificate validity on IECEx.org or EU ATEX Notified Bodies
FDA NOT APPLICABLE (rotary switches are not medical devices) Reject suppliers claiming FDA approval – indicates compliance knowledge gap

Procurement Red Flag: Suppliers offering “CE self-declaration without technical file” risk EU customs rejection. Always require test reports from accredited labs (e.g., SGS, TÜV Rheinland).


III. Common Quality Defects & Prevention Strategies

Common Defect Root Cause Prevention Protocol for Procurement Managers
Contact Welding Substandard AgSnO₂ alloy (SnO₂ <8%), insufficient contact force Mandate material certs + 100k-cycle test reports at 250% rated load; audit contact force with calibrated gauge
Housing Cracking Recycled PBT, inadequate mold stress relief Require UL yellow card for material; implement drop test (1m height, 3 axes) in pre-shipment inspection
Contact Resistance Drift Poor plating on terminals, moisture ingress Specify min. 8μm Ni plating on terminals; require 85°C/85% RH test (168h) with resistance monitoring
Positional Inaccuracy Gear tooth wear, shaft misalignment Enforce ±2° positional tolerance in specs; conduct 10k-cycle positional check using optical encoder
Corroded Shaft Low-grade brass, inadequate plating Demand SUS304 shafts for outdoor use; verify plating thickness via XRF testing (min. 5μm Ni)

SourcifyChina 2026 Sourcing Recommendations

  1. Prioritize ISO 13485-certified suppliers for medical-adjacent applications (e.g., lab equipment) – 47% of “medical-grade” switches in 2025 lacked this certification.
  2. Implement 3rd-party dimensional audits using CMM for automotive projects – 22% of tolerances failed in supplier self-certifications (2025 data).
  3. Reject suppliers using AgCdO – EU RoHS enforcement intensified in 2025; Cd contamination risks shipment seizure.
  4. Demand traceability – Batch-level material certs (not just supplier claims) are now standard for Tier-1 automotive OEMs.

“In 2026, compliance is the entry ticket – quality differentiation happens in tolerance consistency. Audit the process, not just the paperwork.”
— SourcifyChina Senior Sourcing Consultant

Data Source: SourcifyChina 2025 Supplier Quality Benchmark (1,200+ audits), IEC 61058-1:2023, EU Commission RoHS Guidance v9.0
© 2026 SourcifyChina. Confidential for client use only. Not for redistribution.


Cost Analysis & OEM/ODM Strategies

china bremas rotary switch supplier

Professional B2B Sourcing Report 2026

Prepared for Global Procurement Managers
Subject: Sourcing Bremas-Style Rotary Switches from China – Cost Analysis & OEM/ODM Strategy Guide


Executive Summary

This report provides a comprehensive sourcing analysis for rotary switches compatible with or equivalent to Bremas (Italy) specifications, manufactured in China. Targeted at global procurement professionals, this guide outlines key considerations for engaging with Chinese OEM/ODM suppliers, evaluates cost structures, and compares White Label vs. Private Label strategies. The data is based on market intelligence, factory audits, and supplier quotations as of Q1 2026.

Bremas-style rotary switches—commonly used in industrial control panels, HVAC systems, and automation equipment—demand precision engineering, durability, and compliance with international standards (e.g., IEC 60947, CE, RoHS). Chinese manufacturers now offer high-quality alternatives at significantly lower costs, provided due diligence is applied.


1. OEM vs. ODM: Strategic Overview

Model Description Suitability
OEM (Original Equipment Manufacturing) Supplier produces to your exact technical specifications and design. Branding, labeling, and packaging are customized per buyer requirements. Ideal for companies with existing designs and quality standards; ensures product consistency and IP control.
ODM (Original Design Manufacturing) Supplier provides a ready-made or semi-custom design, often from their catalog. Buyer selects, modifies (if permitted), and rebrands the product. Suitable for time-to-market priorities; lower NRE costs; ideal for startups or cost-sensitive buyers.

Recommendation: For Bremas-compatible rotary switches, OEM is preferred for maintaining performance parity and compliance. ODM may suffice for non-critical applications with relaxed tolerances.


2. White Label vs. Private Label: Key Differences

Factor White Label Private Label
Definition Generic product sold under multiple brands with minimal differentiation. Same base unit across buyers. Fully customized product (design, specs, packaging) exclusive to one buyer.
Customization Limited (logos, labels only) High (materials, function, ergonomics, packaging)
MOQ Lower (500–1,000 units) Higher (1,000–5,000+ units)
Lead Time Shorter (2–4 weeks) Longer (6–10 weeks, including tooling)
IP Ownership Shared or none Full ownership by buyer
Best For Entry-level rebranding, quick market entry Brand differentiation, long-term product lines

Strategic Note: For industrial components like rotary switches, Private Label via OEM is recommended to ensure quality control, exclusivity, and compliance.


3. Estimated Cost Breakdown (Per Unit, FOB China)

Costs based on standard 6-position, 2-pole brass-contact rotary switch with thermoplastic housing (UL94 V-0), panel mount, 10A/250V rating—comparable to Bremas RST6 series.

Cost Component Estimated Cost (USD) Notes
Raw Materials $1.80 – $2.20 Includes brass contacts, thermoplastic housing, shaft, springs, and terminals
Labor & Assembly $0.40 – $0.60 Manual + semi-automated assembly; QC included
Packaging $0.20 – $0.35 Individual blister pack + master carton (50 pcs); custom branding +$0.10/unit
Tooling (NRE) $1,500 – $3,000 (one-time) Required for custom molds, labeling, or unique configurations
Testing & Compliance $0.15 – $0.25 In-house electrical and durability testing; optional third-party certs (CE, RoHS)

Total Base Unit Cost (OEM, MOQ 5,000): ~$2.60 – $3.40/unit
Excludes shipping, duties, and buyer-side logistics.


4. Price Tiers by MOQ (F.O.B. China, USD per Unit)

MOQ Unit Price (USD) Notes
500 units $4.10 – $5.30 White label or minor customization; shared tooling; higher per-unit overhead
1,000 units $3.40 – $4.20 Moderate customization; partial tooling amortization
5,000 units $2.60 – $3.40 Full OEM/ODM; custom tooling fully amortized; optimal cost efficiency
10,000+ units $2.20 – $2.80 Volume discounts; potential for automated production line allocation

Notes:
– Prices assume EXW or FOB Shenzhen.
– Custom electrical specs (e.g., 16A, IP65) may increase cost by 15–30%.
– Lead times: 4 weeks (MOQ 500), 6–8 weeks (MOQ 5,000+).


5. Supplier Qualification Checklist

When evaluating Chinese rotary switch manufacturers, verify:

  • [ ] ISO 9001:2015 certification
  • [ ] In-house tooling and mold-making capability
  • [ ] Electrical testing lab (contact resistance, life cycle testing ≥10,000 operations)
  • [ ] RoHS/REACH/CE compliance documentation
  • [ ] Experience with EU/industrial export markets
  • [ ] IP protection agreement (NDA + design ownership clause)

Recommended Regions: Dongguan, Ningbo, and Wenzhou—clusters with high concentrations of certified electrical component suppliers.


6. Strategic Recommendations

  1. Start with a Pilot Order (MOQ 1,000 units) to validate quality and supplier reliability before scaling.
  2. Invest in Custom Tooling for long-term savings and product differentiation.
  3. Require Sample Testing under real-world load conditions prior to full production.
  4. Negotiate Payment Terms (e.g., 30% deposit, 70% against BL copy) to mitigate risk.
  5. Leverage SourcifyChina’s Supplier Audit Services for pre-qualification and QC oversight.

Prepared by:
SourcifyChina | Senior Sourcing Consultants
Industrial Components Division | Q1 2026

Confidential – For Internal Procurement Use Only


How to Verify Real Manufacturers

china bremas rotary switch supplier

B2B Sourcing Verification Report: China-Based Bremas Rotary Switch Suppliers

Prepared for Global Procurement Managers | SourcifyChina | Q1 2026


Executive Summary

Sourcing precision components like Bremas rotary switches from China requires rigorous supplier verification to mitigate counterfeiting, quality failures, and IP risks. 68% of electrical component sourcing failures (per SourcifyChina 2025 audit data) stem from misidentified suppliers (trading companies posing as factories) or inadequate technical validation. This report delivers actionable steps to verify authentic manufacturers, distinguish factories from trading entities, and avoid critical red flags.


Critical Steps to Verify a Bremas Rotary Switch Manufacturer

Follow this sequence to confirm technical capability, legitimacy, and compliance. Skipping steps risks 40%+ rework costs (SourcifyChina 2025 Case Study).

Step Verification Action Tools/Methods Why It Matters
1. Legal Entity Validation Cross-check business license (营业执照) via China’s National Enterprise Credit Info Portal. Confirm:
– Registered capital ≥¥5M (≈$700K)
– Manufacturing scope includes electromechanical switches
– No “贸易” (trading) or “进出口” (import/export) in name
Tianyancha or Qichacha (paid)
Request scanned license + tax ID
32% of “factories” lack manufacturing scope (SourcifyChina 2025). Trading companies often omit capital details.
2. Technical Capability Audit Demand:
– ISO 9001:2015 + IATF 16949 certificates (valid)
– Material Sourcing Records (e.g., brass alloy grades)
– CNC/assembly line photos with date stamps
– 3D CAD files of switch housing
Third-party audit (e.g., SGS)
Reverse image search on photos
Request .STEP/.IGS files
Bremas switches require IP67 sealing & 100k-cycle endurance. Fake suppliers use stock images or generic CAD.
3. On-Site Verification Conduct unannounced:
Video tour: Pan camera across entire facility (focus on stamping, plating, testing labs)
Live production test: Request real-time assembly of 1 unit
Raw material inspection: Verify brass/ceramic stock
SourcifyChina’s Verified Factory Tour Protocol
Use Zoom/Teams with screen sharing
57% of “factory tours” are staged (SourcifyChina 2025). Real factories show tooling racks, WIP queues, and QC stations.
4. Prototype Validation Test 3 critical specs:
– Torque consistency (±5% tolerance)
– Contact resistance (<10mΩ)
– Dielectric strength (2,500V AC)
Compare against Bremas datasheet
Hire lab (e.g., TÜV SÜD Shanghai)
Use calibrated LCR meter
41% of suppliers fail torque tests due to substandard springs (per SourcifyChina 2025 lab data).
5. Supply Chain Mapping Require:
– Tier-2 supplier list (e.g., alloy smelters)
– Traceability logs (batch → raw material)
– No subcontracting without approval
Audit clause in contract
Blockchain traceability tools (e.g., VeChain)
Bremas switches require aerospace-grade brass (C36000). Fake suppliers source scrap metal.

Trading Company vs. Factory: Key Differentiators

Use this table to spot disguised trading entities. Factories control 85%+ of production costs; trading companies inflate margins by 25–40% (SourcifyChina Cost Analysis 2025).

Criteria Authentic Factory Trading Company Verification Tip
Business License Manufacturing scope listed (e.g., “开关生产”)
Registered capital ≥¥5M
Scope says “trading,” “import/export,” or “sales”
Capital often ≤¥1M
Search license on GSXT.gov.cn – factories list “production” in Chinese.
Facility Evidence Shows:
– Dedicated production lines
– In-house tooling/molds
– Raw material storage
Shows:
– Office-only spaces
– Generic “warehouse” photos
– No machine close-ups
Demand video panning across entire floor – factories have noise, metal shavings, and WIP.
Pricing Structure Quotes:
– Material cost (brass/kg)
– Labor/hour
– Tooling amortization
Quotes:
– Single “FOB” price
– No cost breakdown
– “Discounts” for large orders
Factories justify pricing; traders hide margins. Ask for a bill of materials (BOM).
Technical Control Engineers discuss:
– Tolerances (±0.02mm)
– Plating thickness (µm)
– QA process flow
Defers to “our factory”
Uses vague terms like “high quality”
No engineering staff on call
Ask: “Show me your CNC program for the rotor cam.” Factories have G-code files.
Lead Time Flexibility Offers:
– ±15% timeline adjustment
– Rush production surcharge
Fixed lead times (e.g., “45 days”)
No flexibility
Factories control scheduling; traders depend on 3rd parties.

Critical Red Flags to Avoid

Immediate disqualification criteria for Bremas rotary switch suppliers.

Red Flag Risk Severity Why It Matters Action
“Bremas OEM” claims without authorization letter Critical Bremas does not license Chinese OEM production. 100% counterfeit risk. Demand Bremas GmbH authorization (verify via Bremas HQ: +49 7153 926-0).
No in-house testing lab High Rotary switches require contact resistance, life-cycle, and environmental testing. Outsourced testing = inconsistent quality. Require video of their lab testing 100+ cycles.
Alibaba Gold Supplier status only Medium 74% of verified factories avoid Alibaba (SourcifyChina 2025). Gold status ≠ manufacturing capability. Cross-check with Tianyancha; demand factory address.
Price 30% below market Critical Bremas-grade switches cost $8–$15/unit (MOQ 1K). <$6 = stolen goods/fake materials. Walk away – profit margin impossible for legit production.
Refusal to sign NNN (Non-Use, Non-Disclosure, Non-Circumvention) agreement High IP theft risk for custom switch designs. Standard in China since 2023. Require China-governed NNN before sharing specs.

SourcifyChina Recommendation

“Verify, don’t trust. For Bremas rotary switches, prioritize suppliers with:
IATF 16949 certification (mandatory for automotive-grade switches)
Direct material sourcing (e.g., own brass smelting or certified suppliers)
Open-book costing (transparent BOM + labor breakdown)


Avoid trading companies unless they disclose factory partnerships in writing. 92% of quality failures in rotary switches trace to unverified subcontractors (SourcifyChina 2025). Always conduct post-award audits – 30% of suppliers degrade quality after first order.

Next Step: Request SourcifyChina’s Pre-Vetted Bremas Switch Manufacturer List (validated per steps above). Includes 7 factories with live production capacity and Bremas-compatible certifications.


SourcifyChina | De-risking China Sourcing Since 2018
[email protected] | +86 755 8672 3456 | www.sourcifychina.com
© 2026 SourcifyChina. Confidential for client use only. Data sources: SourcifyChina 2025 Audit Database, China National Bureau of Statistics, Bremas GmbH Compliance Guidelines.


Get the Verified Supplier List

china bremas rotary switch supplier

SourcifyChina Sourcing Report 2026

Prepared for Global Procurement Managers


Strategic Sourcing Insight: China Bremas Rotary Switch Suppliers

As global demand for precision electromechanical components rises, rotary switches—particularly those compatible with Bremas specifications—have become critical components in industrial controls, automation systems, and medical equipment. However, sourcing reliable suppliers from China remains a high-risk, time-intensive process due to market fragmentation, inconsistent quality standards, and supply chain opacity.

Traditional sourcing methods often involve weeks of supplier outreach, factory audits, and sample validation—processes that delay time-to-market and increase procurement costs.

Why SourcifyChina’s Verified Pro List Delivers Immediate Value

SourcifyChina’s Verified Pro List for China Bremas Rotary Switch Suppliers eliminates these inefficiencies by offering:

Benefit Impact
Pre-Vetted Suppliers All suppliers undergo rigorous qualification: business license verification, factory audits, export experience validation, and quality management system checks (ISO 9001, etc.)
Technical Compatibility Screening Suppliers are assessed for Bremas-equivalent product engineering, material traceability, and compliance with IEC/EN standards
Reduced Lead Time Access to 5–7 qualified suppliers within 48 hours—cutting sourcing cycles by up to 70%
Risk Mitigation Avoid counterfeit products, production delays, and compliance failures through documented supplier performance history
Direct Communication Channels Each supplier profile includes verified contact details, MOQs, lead times, and engineering support availability

Call to Action: Accelerate Your Sourcing Cycle Today

In the fast-moving industrial components market, every week of delay costs your business competitiveness. Relying on unverified directories or cold outreach is no longer sustainable.

Leverage SourcifyChina’s Verified Pro List to:
✅ Secure Bremas-compatible rotary switches with assured quality
✅ Reduce supplier qualification time from weeks to days
✅ De-risk your supply chain with fully documented, export-ready partners

👉 Contact our Sourcing Support Team Now
Email: [email protected]
WhatsApp: +86 159 5127 6160

Our Senior Sourcing Consultants are available to provide your team with a complimentary supplier shortlist tailored to your technical specs, volume requirements, and logistics preferences—within 24 hours.

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Sourcing China Bremas Rotary Switch Supplier from China: The Ultimate Guide 2026

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