... to 25mm Material: Q195/Q235/Q345 Steel square pipe ,square tube ,rectangular steel pipeName:Square pipe ,square tube ... to customer's requirementMaterial:Q235,Q345,20#,alloy steel,stainless steelExecutive standard:GB/T3094,6728-2002,ASTM ... :According to customer's demandPackaging:Steel strips bundledApplication Range:Apply to construction steel structure,automotive manufacturing,machinery manufacturing ...