Dear Sir Madam, Material:Steel Thick:3.0mm Min Yield Stress:345Mpa Tensile Strength:470Mpa ~670Mpa Certificate:ISO9001:2008 Shape:Octagonal Size:30FT 35FT 40FT 45FT Surface treatment:Hot dip Galvanized Galvanization:ASTM A123 Zinc Coating:Min 86microns Show More...