Coil strip as raw materials,extrusion molding under normal temperature.Welded with active double-wire double-sided submerged arc welding process.
Spiral Steel Pipe is one of the 20 key product that China developed.
Mainly used in the project of drilling,water supply,agricultural irrigation, petrochemical industry, chemical industry, power industry, urban construction.
For Liquid delivery:Water supply, drainage, sewage treatment works, mud transmission , and marine conveyance
For gas delivery:Gas, steam, liquefied petroleum gas；
For structure:Be piling tube, as the bridge ；docks, roads, building structure pipe