... Galvanized Steel Pipe1) Material of weld steel pipe: Q195, Q215, Q235, Q345, X52, X602) Standards: Q195/235,SS400,ST37,A36/53/106,API 5L ... pipe, Fence/Door pipe, Furniture, Low pressure fluid pipe for water oil or gas, Boiler pipe7)Pre galvanized steel pipe: 60-150g/m²; Hot dipped galvanized steel pipe ...