-    Large-diameter thick-walled tube (6)
     -    Fluid tube (3)
     -    Copper seamless tube (5)
     -    Lead quality seamless tube (7)
     -    Aluminum seamless tube (2)
     -    Internal thread seamless pipe (2)
     -    High-precision air tube (2)
     -    Fertilizer dedicated pipe (2)
     -    Petroleum cracking tube (2)
     -    Ship management (1)
     -    Geological special tube (1)
     -    Hydraulic support (1)
     -    Oil Casing (1)
     -    Automobile axle tube (1)
     -    Bellows (1)
     -    Coupling tube (1)
     -    Spirally fluted tube (1)
     -    Oxygen tube (1)
     -    Lead, Antimony tube (1)
     -    Other seamless tubes (1)
     -    Precision Tube (1)
     -    High Pressure Boiler Tube (1)
     -    Alloy tube (2)
     -    Other (0)