... Steel Auto Hook 1.CertificationTUVPED-ADISO9001:2000 2.Size:DN15-DN5000 3.Process:free forgingDie F 4.OEM Carbon Steel Auto Hook 1.Auto Hook ... Material a)carbon steel SA234 WPB, SA234 ... DIN 1629 St37, RST37.2 St52 b)Stainless Steel: ASTM/ASME SA403 304,304L ,316, 316L ... SUS304,SUS304, SUS304L, SUS316, SUS316 c) Alloy Steel: ASTM/ASME SA234 WP12, WP11,WP22, WP5, ...