DIN 2458 carbon steel welded pipe : Size: 1/2"-48" Thickness: SCH10-SCH160,SGP,STD,XS,XXS Standard: ASTM,DIN,BS,ANSI,JIS ... ,EN DIN 2458 carbon steel welded pipe with good quality ... so on.Structure type: seamless pipe,straight steel pipe,square pipe,spiral pipe ,and so on.Deaign and manufacture std: DIN carbon steel flangesMaterial:Rst37 ...