Oil steel round pipe 1.Material Q235, Q345, Q195, ... fluids 4.Hot dipped Oil steel round pipe High strength, ornamental stainless steel tubing is a design feature ... 1.Material stainless steel ,steel model Q235, Q345, Q195, Q215 ,etc2..specification type Outer Diameter Thickness Round Pipe 32mm - ... -galvanized tube is made of hot dipped galvanized steel strip directly.HOT DIPPED GALVANIZED : Hot dipped ...