... . Zinc coat: Z60,Z80,Z120,Z180 1.Hot Dipped Galvanized Steel Pipe2. Size:14580*0.12-2*6000mm3. Zinc ... EN10142 JIS G3302 GB/T-12754-20065. Application of Hot Dipped Galvanized Steel Pipe ConstructionOutside: Workshop, agricultural warehouse, residential precast unit ... drainage pipe, retailer boothInside: Door, door case, light steel roof structure, folding screen, elevator, stairway, vent ...