... from carbon steel material confirming to ASTM, DIN, EN,JIS, GOST, ETC STANDARD: 1)ANSI, DIN, UNI, BS, JIS, KS 2)Welding ... .S 304, 304L,316, 316LANSI B16.5 / ASME B16.47 Standard: 150LBS, 300LBS, 600LBS, 900LBS, 1500LBS. Welding Neck Flange, Slip-On ...