... : ISO9001 : ISO2000 3.Applicable standard:ANSI B 16.9,ASME Stainless Seamless CapSize1/2"- 72"Wall thicknessSch 10- Sch xxsApplicable standardANSI ... .9,ASME , ASTM,,JIS , DIN , EN,MaterialASTM A234 WPB, carbon steel,316, 316L, 304,304L, 321, 2520 and 904LConnectionButt-welding,forged ... oil, chemical industry, water conservancy, electric power, boiler, machinery, metallurgy, sanitary construction etc.