Structural Seamless Steel Pipe: Primarily used for general and mechanical structures. Representative materials (grades): Carbon steel 20, 45 steel; Alloy steel Q345, 20Cr, 40Cr, 20CrMo, 30-35CrMo, 42CrMo, etc.

Seamless Steel Pipes for Fluid Transfer: Primarily used for fluid conveyance in engineering and large-scale equipment. Representative materials (grades) include 20, Q345, etc.

Seamless Steel Tubes for Low and Medium Pressure Boilers: Primarily used for piping in industrial and domestic boilers to transport low and medium pressure fluids. Representative materials include grades 10 and 20 steel.

Seamless Steel Tubes for High-Pressure Boilers: Primarily used for high-temperature and high-pressure fluid collection chambers and pipelines in power plants and nuclear power plants. Representative materials include 20G, 12Cr1MoVG, and 15CrMoG.

Carbon Steel and Carbon Manganese Steel Seamless Steel Pipes for Ships: Primarily used for pressure pipes of I and II grades in ship boilers and superheaters. Representative grades include 360, 410, and 460 steel.

Seamless Steel Tubes for High-Pressure Fertilizer Equipment: Primarily used for transporting high-temperature, high-pressure fluids in fertilizer equipment. Representative materials include 20, 16Mn, 12CrMo, 12Cr2Mo, etc.

Seamless Steel Tubes for Crude Oil Cracking: Primarily used in boilers, heat exchangers, and fluid conveyance pipelines of oil refineries. Representative materials include 20, 12CrMo, 1Cr5Mo, 1Cr19Ni11Nb, and more.

Seamless Steel Tubes for Gas Cylinders: Primarily used for manufacturing various gas and hydraulic cylinders. Representative materials include 37Mn, 34Mn2V, and 35CrMo.