1).Product :API 5L X42 Line Pipe ERW Welded 2).Standard:ASTM A53/API5L GRADE B PSL-1 3).OD : 4" --18" 4).WT: ... , EN10219.1,API 5L ,ASTM A53,GB/T3091,GB/T9711,etc4. Grade : Q235B, A53(A,B), Gr.B, X42, X46, X52, X56 ... , India, Malaysia, Singapore, Vietnam,Thailand, Australia,Spain, Italy etc16. Certificate: API 5L,API 5CT,ISO 9001 API 5L X42 Line Pipe ERW Welded