... 3m-12m4. Producing Standard:American ASME B36.10M, ASTM, API 5L, API 5CT Japanese JISGerman DINChinese GBBS ... standard5. Main Material:(Carbon Steel & Low Alloy steel)ASTM A53, A106, A210, A252, A333 etc; X42, X46, X52 ... per customer’s requirements8. Surface treatment:Bare pipe, Painted, Oiled, Galvanized, 3PE,FBE,Epoxy Coating 9. Usage ... ,Competitive price, And Quick delivery ! ASTM A106 seamless pipe