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About Us - Quality Control

Since its establishment in 2008, GNEE Stainless Steel has consistently adhered to the principle of quality first, strictly following the ISO 9001 quality management system in its production, and exporting high-quality stainless steel products to customers worldwide. Its products have obtained certifications from authoritative third-party testing agencies such as API 5L, SGS, BV, TUV, ABS, LR, GL, DNV, CCS, RINA, and RS.

 
Our Certification

 

 
 CE Certification
CE Certification
Alibaba Certification
Alibaba Certification
SGS Certification
SGS Certification

 

PRODUCT QUALITY ASSURANCE SYSTEM

 

To ensure the stable quality and traceability of stainless steel products, all materials are rigorously tested according to relevant international standards. Chemical composition is tested using spectral analysis (PMI) or direct-reading spectrometers to ensure that the content of key elements such as Cr, Ni, Mo, and C meets ASTM/EN/JIS standards; dimensional tolerances and surface quality are also inspected. If necessary, ultrasonic testing (UT), eddy current testing (ET), or corrosion resistance test reports can also be provided to ensure the material's reliable safety and consistency under actual operating conditions. 

Coil incoming Inspection (PMI)
Coil incoming Inspection (PMI)
Plate incoming inspection (PMI)
Plate incoming inspection (PMI)
 
Customer inspection for raw material
Customer inspection for raw material
Customer product inspection
Customer product inspection
Customer product inspection
Customer product inspection
Customer product inspection
Customer product inspection

 

Radiographic test
Radiographic test
 
Radiographic test
Radiographic test
Eddy current test (ET)
Eddy current test (ET)
Underwater air tightness test
Underwater air tightness test
Product hydrostatic test
Product hydrostatic test
 
Hydrostatic test, supervision and inspection
Hydrostatic test, supervision
and inspection