... Pre galvanized tube Size:1/2"-8" Thickness:0.6-2.5mm Material:Q195,Q235 Package:Bundles,loose or as per dem Pre ... galvanized tube / pre-galvanized round pipes Size:1/2"-8" ... : ERW Steel Pipes , Square Pipes , Rectangular Pipes , Pre-galvanized Pipes , Galvanized Pipes , Seamless Pipes and so on ... ) Tianjin Baokunsheng Steel Trading Co.,Ltd Pre galvanized tube