pipe cap Size:1/2"-48"DN15-DN1200 Standard:ASME B16 ... , DIN2605, DIN2617, etc Material:carbon steel or SS Packing:standardpipe cap(end cap) Certificate: ISO, EC, RINA, GL, CCS, LR, SBG ... DN1200Wall thicknessSch5-Sch160XXSStandardASME B16.9, ASME B16.28, ASME B16.11, DIN2605, DIN2617, DIN2516, JISB2311 etc.MaterialA234-WPB.A420- ... the ISO9001:2000 strictly. china stainless steel screw cap/pipe fitting