erw api 5l steel pipe Manufacture OD:48.3---610mm Thickness:2.---14mm Standard:EN1,API ,ASTM. Material:GRB ,X42,J55,X65 S35 ... ),45#(DIN CK45),16mn(ST52.4) etc.b. JIS Standard10#(STPG38,STS38,STB30,STB33,Stb35), 20#(STPG42,STB42,STS42,JIS S20C ... AE.run.minisite.productShow(); oProductShow.init( { 'aImgSrc': aBigImageSrc } ); } )(); carbon steel pipe