structural steel pipe with ASTM A106 GradeB 1.standard: ASTM JIS API DIN etc 2.OD: 20 - 610 mm ... Third,the CPU details of our products Fourth,product Details StandardBS, JIS, GB, DIN, ASTM, APIStandardASTM A106,ASTM A53,10#,20# ... NotNon-secondaryApplicationCarrying gas,water or oil in the industries of petroleum and natural gasTechniqueHot Rolled CertificationAPISurface TreatmentBlack paint,varnishi ...