... ,seamless 2.Material:carbon steel,stainless steel,alloy steel mitre elbow nonstandard elbowSizeSeamless elbow: 1/2"~24" DN15~DN600Welded elbow : 1/2"~100" ... Welded pipe bend/Welded bend pipeWall thicknesssch10, sch20, sch30, std, sch40, sch60, xs, sch80, sch100, sch120, sch140, sch160, xxs ... X42,ASTM A860,ASTM A694,ASTM A420 WPL6, WPL3Stainless steel:ASTM A403 WP304, A403 WP304L, A403 WP316, A403 ...