Seamless steel pipe and tube The fluid of seamless steel pipe, low and center presses with the boiler pipe, the construction attachment uses for the seamless steel pipe, the alloy tube and the bearing use for the seamless steel pipe, and according to the user request product the special steel pipe . Our company passed the conformity assessment of iso9001-2000, and has the national industry product production permit which the country issues, proves the number is xk05-208-00084.