50*50mm galvanized square tube/pipe Material:Q195,Q215,Q235,Q345 Shape:Rectangular Standard:ASTM,BS,GB,GIS,API,etc. Size:20*40mm-50*100mm Thickness:1.2-4.0mm Length:6-12m or as your choice Surface trement:Galvanized Zinc Coating:40-275g/m2 MOQ:25MT Payment Term:T/T(30% in advance and the rest before shipment.) Application:Construction,Machinery manufacturing, Shipbuilding, Automobile chassis,etc. Certificate:SGS
