Our Quality
ThreeWin Electronics operates under an SGS-certified ISO 9001:2015 quality management system. We cooperate with an ISO 9001-certified quality testing laboratory to ensure consistent product quality from procurement through inspection and final shipment.
SGS ISO 9001:2015 Certified
THREEWIN ELECTRONICS LIMITED
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Quality Management System
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Scope: Sales of electronic components
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Certificate No. CN26/00004411.01
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Valid until 17 June 2029
QUALITY CONTROL
At ThreeWin, every shipment is handled through a strict quality control process, including supplier screening, document and label verification, visual inspection, and specific laboratory testing when required.
Supplier Qualification & Risk Screening
Source Classification
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Tier 1: Original Manufacturer
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Tier 2: Authorized Distributor
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Tier 3: Factory / OEM Surplus
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Tier 4: Independent Distributor
Supplier Evaluation Records
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Quotation History
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Order Performance
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Delivery Record
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Return / RMA History
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Quality Issue Record
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Blacklist / Restriction Record
Supplier Screening
Package Inspection
Document Verification
Label Verification
External Visual Inspection
Lab Inspection
When required, in-depth inspections are conducted through an ISO 9001-certified laboratory according to customer requirements and product risk assessment.
Inspection Report Requirement Verification
LAB TESTING WHEN REQUIRED
Electrical testing · X-ray inspection · Decapsulation · Solderability testing · Material / marking verification
Based on customer requirements and product risk assessment.
INSPECTION PROCESS
AFTER-SALES SERVICES
Rapid Response
Our Service Team will be on standby and promptly address any technical or logistics concerns.
Comprehensive Reporting System
For issues related to products packaging, quality anomalies, etc., we can provide corrective / preventive action reports, third-party laboratory or original manufacturer FA reports.
Rigorous Traceability System
Our Quality Inspection can trace part numbers, COO, date codes, lot numbers, and conduct comparison tests with golden samples for each transaction.