carbon steel elbow Material:Carbon steel Size:1/2'' to 72'' /DN15-DN2000 Thickness:sch10-XXS Certificate:API,ISO9001,PE Product Introduction Of Carbon Steel Elbow For Pipes1. Material: Carbon steel (seam ... , steel elbow fittings,nipple,etcWTSch5-SchXXS ,such as SCH20, SCH40, STD, SCH80, SC100, SCH120, and SCH160StandardANSI,ASME,API5L,DIN,JIS,BS,GB SGP ...