... SCH10-SCH160,SGP,STD,XS,XXS Standard: ASTM,DIN,BS Material:ASTM A234 carbon steel seamless pipe with good quality :Certificate:ISO9001:2000 ... ,CE.Size: 1/2"-48"Material: stainless steel,carbon steel, ... ,and so on.Deaign and manufacture std: DIN carbon steel flangesMaterial:Rst37.2,St37.2,C22.8)DIN2573 PN6;DIN2576 ...