... Galvanized Steel Pipe 2. Size:14580*0.12-2*6000mm 3. Zinc coat: Z60,Z80,Z120,Z180 1.Hot Dipped Galvanized Steel Pipe2. Size ... GB/T-12754-20065. Application of Hot Dipped Galvanized Steel Pipe ConstructionOutside: Workshop, agricultural warehouse, residential precast unit ... roller shutter door, rainwater drainage pipe, retailer boothInside: Door, door case, light steel roof structure, folding screen, ...