... JIS, BS, ISO, GB, SH, AND HG etc MaterialStainless Steel: ASTM A403 WP304, 304L, 310, 316, 316L, 321, ... 347, 904L Carbon Steel: ASTM A234 WPB, WPC ASTM A105 WPHY 42, 46 ... , 52, 56, 60, 65, 70, 80 Alloy Steel: ASTM A234 WP1, WP5, WP9, WP11, WP22, WP91 ... :2000Productivity30000 ton per yearKeywords: ELBOW,carbon steel seamless pipe fittings,steel seamless pipe fitting Pipe Elbow