... :3m-12m4. Producing Standard:American ASME B36.10M, ASTM, API 5L, API 5CT Japanese JISGerman DINChinese GBBS standard5. Main Material:(Carbon Steel ... A106, A210, A252, A333 etc; X42, X46, X52, X60, X65, X70 etc; JIS STPG42, G3454, G3456 etc; German St37, St42, St45 ... two ends as per customer’s requirements8. Surface treatment:Bare pipe, Painted, Oiled, Galvanized, 3PE,FBE,Epoxy Coating 9. Usage:Widely ...