... #,A3, Q235A, 20G,16Mn, DIN St37, St45.8, St52.4,St.35.8,St.35.8 ASTM A333 GR.6 ; API 5L GRB ... light spectrum, hydrostatic test ,X-ray detector,ultrasonic flaw detection ,magnetic powder detector ,etcQualification-- API ,CE ,ISOPacking-- in wooden cases or as ...