... .Surface Treatment: Galvanized,oil,painted etc 2.Specification:ASTM/ASME/JIS/DIN Carbon steel(seamless) pipes1)SMLS/ERW carbon ... X42/52,J55 etc1)SMLS/ERW carbon steel pipe2) Used for oil well, boilers, precision machines, petro-chemical, ship, ... line pipe etcSeamless Steel Pipe Specification:ASTM/ASME A335 for seamless ferritic alloy-steel pipe for high-temperature serviceSeamless Steel Pipe Place of ...