... JIS, BS, ISO, GB, SH, AND HG etc MaterialCarbon Steel: ASTM A53/A106,ASTM A179,API 5L X42/52/60Surface treatment:Black painting, anti ... rust oil, hot galvanized,3PE coating, epoxy coating.PackingPlastic :pipe cap, plastic bag, steel strips bundledApplication:Petroleum, chemical, power, gas, metallurgy, ... so on. Any need , please feel free to contact me. ASTM A106A53 Gr.B seamless carbon steel pipe