hot dipped alloy steel pipe zinc coating pipe green house pipe

4.8/5 Stock Sch 40 80 40g Zinc Scaffolding Galvanized Steel hot dipped alloy steel pipe zinc coating pipe green house pipe

Hot dipped galvanized pipe hot dipped galvanized pipe owns thicker zinc coating than pre-galvanized pipe ,black pipes will be dipped into zinc pool for galvanized. Standard GB/T3091

4/5 Black pipes hot dipped alloy pipes 114 3 2 Zinc Coated 275G/M2 Hot