Strict Quality Control Measures
At Tianjin Kun Yu Technology, product quality is the foundation of our reputation and customer trust. We implement a comprehensive quality control system that spans from raw material procurement to final shipment, ensuring that every batch meets or exceeds customer expectations and international standards.
Stringent Raw Material Inspection
All incoming steel coils and raw materials undergo rigorous testing before acceptance.
We verify material certificates (MTC), chemical composition, mechanical properties, and dimensions.
Use of spectrometers and other advanced equipment to detect alloy elements and impurities.
Controlled Manufacturing Process
Production follows standardized operating procedures (SOPs) covering hot-dip galvanizing, color coating, cold rolling, and pipe forming.
Real-time monitoring of coating thickness, surface gloss, and adhesion using digital gauges.
Process parameters such as temperature, line speed, and tension are strictly controlled to maintain uniformity.
Multi-Stage Quality Checks
In-process Inspection (IPQC): Operators and quality personnel inspect key stages such as coil leveling, coating application, slitting, and welding to catch defects early.
Final Product Inspection (FQC): Includes dimensional accuracy, coating appearance, corrosion resistance tests, and packaging integrity checks.
Sampling follows ISO 2859 standards for statistical quality control.
Accredited Testing & Certifications
Partnering with third-party labs such as SGS, BV, and TÜV for impartial quality verification.
Products meet international certifications including ISO 9001:2015, ASTM, GB, and EN standards.