The Hollow section is divided into square and rectangular cold-formed hollow steel, referred to as square pipe and rectangular pipe. The square pipe is divided into hot-rolled seamless pipe, cold-drawn seamless pipe, extruded seamless pipe and welded square pipe according to the production process.
There are various surface treatment methods, including hot-dip galvanized, electric galvanized, oil coated, pickling, etc.
Hollow section applications mainly include: decoration, machine tool equipment, machinery industry, chemical industry, steel structure, shipbuilding, automobile manufacturing, steel beam and column, and other special purposes.
There are various surface treatment methods, including hot-dip galvanized, electric galvanized, oil coated, pickling, etc.
Hollow section applications mainly include: decoration, machine tool equipment, machinery industry, chemical industry, steel structure, shipbuilding, automobile manufacturing, steel beam and column, and other special purposes.