Active Member
9 Years
JIANGYIN TUOCHUAN METAL MATERIALS CO., LTD
Professional manufacture of stainless steel flanges in China
Manufacturer from China
JIANGYIN TUOCHUAN METAL MATERIALS CO., LTD
Professional manufacture of stainless steel flanges in China
1. Raw material chemical inspection
Chemicals verification on every heat of material with spectrometer. Non-conformity materials are to be rejected
2. Visual inspection (in process)
Inspect dimension and surface before drilling
3. Visual inspection (finished product)
100% dimension check and surface, crack and scratch not allowed
4. PT test
5. PMT test
