... ,CE,API 4.Material:Carbon Steel,Alloy Steel,Stainless STD WT A53 GR B ERW BEVELED ENDS PIPE SpecificationsChina StandardSteel GradeStandardseamless ... , 1Cr5Mo, JIS G3441-1988Big size SAW pipePacked in bundle STD WT A53 GR B ERW BEVELED ENDS PIPE