plumbing fitting: Typeelbow Size1/2"- 72"Wall thicknessSch 5- Sch xxsApplicable standard GB, ASME , ASTM, MSS ,JIS , DIN , EN, and customers' drawings for special use; Material Carbon steel, alloy steel, stainless steel ConnectionButt-welding, Socket-welding, Threaded-weldingApplications rangesuch as oil, chemical industry, water..