... , XS, XXS, SCH 10 ~ SCH 1604. Standard: ANSI B16.9, DIN, JIS, GOST17375, EN10253-1, EN10253- ... specializes in manufacturing steel buttweld pipe fittings and forged flanges, which are widely used in the field of ... WP316/316L/316H, WP321, WP347/347HSTANDARDANSI B16.9, ANSI B16.28, DIN2605/2615/2616/2617, JIS2311/2312 ... 304H, F316/316L, F321, F347STANDARDANSI B16.5, ANSI B16.47, DIN2573/2576/2501/2502/2543, ...