Our company deals with seamless steel tubes, including the ordinary steel tubes, precise steel tubes and stainless steel tubes, with all specifications all the year around.

Seamless steel tubes include hot-rolled (extruding) ones and cold-rolled ones. The cold-rolled tubes include round tubes and special-shaped tubes.

Introduction to the process flows:
Hot-rolled (extrusion seamless steel tubes):
Round tube blank -- Heating -- Piercing -- Three-roll cross rolling, continuous pressing or extruding -- Tube falling -- Diameter fixing (reduction) -- Cooling -- Blank -- Straightening -- Water pressure test (or flaw detection) -- Marking -- Warehouse access

Cold-rolled seamless steel tubes:
Round tube blank -- Heating -- Piercing -- Heading -- Annealing -- Acid cleaning -- Oil coating (copperizing) -- Multiple cold-rolling -- Tube blanking -- Heating treatment -- Straightening -- Water pressure test (or flaw detection) -- Marking -- Warehouse access