Model Number

401

We supply various accordance with the national standards (GB) or with the foreign advanced standard of as ISO, DIN, ASTM, and JIS. such as: Seamless steel tubes and pipes for tubing, Seamless steel tubes and pipes for coupling stock of tubing, Seamless steel pipes for casing, Seamless steel tubes and pipes for coupling stock of casing, Seamless steel tubes for heat insulating tubing, Seamless steel tubes for perforating gun oil and gas well, Seamless steel tubes for drill pipe, Seamless steel pipes for coupling stock of line pipe , Seamless steel pipes for line pipe , Seamless steel tubes for low and medium pressure boiler, Seamless steel tubes and pipes for high pressure boiler, Seamless steel tubes and pipes for structural purpose, Seamless steel tubes and pipes for liquid service, Seamless steel tubes and pipes for petroleum cracking, Seamless hot rolled steel tubes for hydraulic pillar service,Seamless steel tubes for high pressure chemical fertilizer equipment, the external thread pipes for low and medium pressure boiler , Seamless steel tubes for automotive axle housing , carbon and carbon-manganese steel seamless tubes and pipes for ship , cold drawn special shape steel tubes (square , rectangle, oval , hexagon etc) , stainless seamless steel pipes , Seamless steel tubes for sucker rod , Seamless steel tubes for gas cylinder , cold-drawn or cold rolled precision seamless steel tubes , Seamless steel tubes standard use diamond core drilling , precisely drawn seamless steel pipes for submersible motor , seamless cold-drawn low-carbon steel heat-exchanger and condenser tubes , carbon-steel seamless tubes and pipes for high temperature operation ,, ferrite and Austenite alloy steel seamless steel pipes for boiler, superheater and heat exchanger, carbon-steel and alloy steel seamless stell tubes and pipes for mechanical engineering , carbon- steel seamless steel tubes and pipes for high pressure boiler .