good quality at most competitive price size:1/2-48" TK:SCH10S- ... B 16.9,ASME , ASTM,,JIS , DIN , EN,MaterialCarbon steel, alloy steel, stainless steel ConnectionButt-welding,forged fittingApplications rangsuch as oil ... , electric power, boiler, machinery, metallurgy, sanitary construction etc.QualityISO9001 : ISO2000-Quality-Systerm has been passed .PackagingWooden cases ,wooden pallet plastic bag ...