Hot dip galvanized square tube
Hot dip galvanized square rectangular pipe is pickled to remove the iron oxide on the surface of the steel pipe, and then cleaned by ammonium chloride and zinc chloride mixed aqueous solution, and then sent into the hot dip plating tank. Hot dip galvanized square tube has the advantages of uniform coating, strong adhesion and long service life. Mainly used in curtain wall, construction, machinery manufacturing, steel structure engineering, shipbuilding, solar support, steel structure engineering. Hot dip galvanized square tube is also widely used in the manufacture of oil drill pipe, automobile drive shaft, bicycle frame, construction scaffolding and other structural parts and mechanical parts.
GB/T6728-2017 "Cold-formed Hollow Section Steel for Structure"
Curtain wall, construction, machinery manufacturing, steel structure engineering, shipbuilding, solar support, steel structure engineering and piping used for conveying fluid.
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