The pre galvanized square steel tube produce processes?
Update Time:2016-09-14


There is a complete set of production line for pre-galvanized square hollow section and rectangular hollow section. 


We use pre galvanized steel strips for raw materials, through a variety of processing technology, such as flattening, shearing and butt welding, circle shearing, loop shoring, roll forming, ctttingand so on.





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