... , A333, DIN1629, DIN17175, Russian standard, Franch stan.)2. stainless steel pipe (304, 316, 316L, 304L, 321, 410, 444, 430 ... , API, Mill Test Certificate17Contact:Hunan New Materials Industry Group Co., LtdAdd.: 333, Wuyi Road, Changsha, Hunan, ChinaTel: ... 9001↓-Equipment and Detector-Application-Other Leading steel pipe---stainless steel pipe↓---Anti-corrosion steel pipe↓ A53/A106/API 5L GR.B ...