Carbon steel hot-rolled and cold-rolled (drawn) steel two categories.

Hot-rolled carbon steel pipe, low/middle-pressure boiler steel tubes, high-pressure boiler steel pipe, alloy steel, stainless steel tubes, oil cracking tube, geology, such as steel and other steel.

Cold rolling () carbon steel pipe in addition to General steel pipe, low/middle-pressure boiler steel tubes, high-pressure boiler steel pipe, alloy steel, stainless steel tubes, oil cracking tube, steel tube, also includes carbon thin-wall steel pipe, alloy thin-wall steel tube, thin-walled stainless steel pipes, shaped steel tube. Hot-rolled seamless pipe outside diameter is larger than 32mm, wall 2.5-75mm, cold-rolled seamless steel tube outer diameter to 6mm, wall thickness to 0.25mm, thin-walled tube outer diameter to 5mm, wall thickness is less than 0.25mm, cold than hot rolled high dimensional accuracy.

Carbon steel: for 10, 20, 30, 35 and 45 high quality carbon structural steel 16Mn, 5MnV or low-alloy structural steel 40Cr, 30CrMnSi, 45Mn2, 40MnB, made of alloy steel hot-rolled or cold-rolled. 10, 20, made of low carbon steel seamless pipes are mainly used for fluid pipelines. 45, 40Cr, carbon steel seamless pipe used in the manufacture of mechanical parts, such as automotive, tractor mechanical parts. General carbon steel to ensure strength and flattening test. Hot-rolled steel hot-rolled or heat treatment State delivery cold rolled steel with heat treatment delivery.