... WPB ASTM A106 seamless pipe with good quality :high quality,low price,multi-standardCertificate:ISO9001:2000,CE.Size: 1/2"-48"Material: stainless steel ... .Deaign and manufacture std: DIN carbon steel flangesMaterial:Rst37.2,St37.2,C22.8)DIN2573 PN6;DIN2576 PN10,DIN2502 PN16,DIN2503 PN25 ,PN40 ...