... A234WPB 3.good quality and reasonable price 90 degree tube elbow Materialcarbon steel, stainless steel, alloy steelTechniquewelded and hot- ... SCH20, SCH40, STD, SCH80, SC100, SCH120, and SCH160StandardANSI,ASME,API5L,DIN,JIS,BS,GBwe can also produce according to ... , caps, concentric and eccentric reducersRadius Of Curvature1D-10D ANSI,ASME,API5L,DIN,JIS,BS,GBSurface treatmentblack paint, varnish, rust ...