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            Galvanized Steel Rectangular Tube
                    
                  
                                  Galvanized Steel Rectangular Tube is a long steel tube with a rectangular cross-section. Steel with high carbon content for strength, good resistance to force.
                  Black Steel Rectangular Tube
                    
                  
                                  Black Steel Rectangular Tube has a longer length than the width, so the cross-section of the steel box is rectangular. Normally, Black Steel Rectangular Tube is used to make beam structures, steel frames, frames, railings...
                  Galvanized Steel Square Tube
                    
                  
                                  Galvanized Steel Square Tube is a box steel made up of large (corrugated) steel plates of optional thickness and hollow construction.
                  Black Square Steel Tube
                    
                  
                                  Black Square Steel Tube is a square box of steel made from hot-rolled steel sheets. This steel has a blue-black surface, in addition to black box steel, there are also galvanized steel boxes on the market with similar specifications.
                  