pipe cap Size:1/2"-48"DN15-DN1200 Standard:ASME B16.9, ... , DIN2605, DIN2617, etc Material:carbon steel or SS Packing:standardpipe cap(end cap) Certificate: ISO, EC, RINA, GL, CCS, LR, SBG, ABS ... made under the ISO9001:2000 strictly. china stainless steel screw cap/pipe fitting