Shandong seamless pipe mill for everyone analysis of large-caliber coated steel pipe is large-diameter pipe diameter is more than 1000 MM steel pipe, steel pipe is made of steel ingots or solid billets made of perforated, and then hot-rolled, cold-rolled or cold dial Made (Shandong Seamless Steel Tube Factory). Large-diameter coated steel pipe is made of plastic coated with large-diameter spiral welded pipe and high-frequency welded pipe. The maximum nozzle diameter is 1200mm. It can be coated with polyvinyl chloride (PVC), polyethylene (PE) according to different needs. Epoxy resin (EPOZY) and other various properties of plastic coating, good adhesion, strong corrosion resistance, resistant to strong acids, alkalis and other chemical corrosion, non-toxic, non-rust, wear resistance, impact resistance, penetration resistance Strong, smooth surface of the pipe, no adhesion of any substance, can reduce the resistance during transportation, increase the flow rate and transmission efficiency, reduce the transmission pressure loss. There is no solvent in the coating, no leakage of substances, so it will not contaminate the transported media, so as to ensure the purity and sanitation of the fluid. It can be used alternately in the range of -40°C to +80°C, without aging, Because it does not crack, it can be used in harsh environments such as cold areas. Large diameter coated steel pipes are widely used in tap water, natural gas, petroleum, chemical, pharmaceutical, telecommunications, electric power, marine and other engineering fields.