... coat: Z60,Z80,Z120,Z180 1.Hot Dipped Galvanized Steel Pipe2. Size:14580*0.12-2*6000mm3. ... of Hot Dipped Galvanized Steel Pipe ConstructionOutside: Workshop, agricultural warehouse, residential precast unit, corrugated roof, roller shutter door ... pipe, retailer boothInside: Door, door case, light steel roof structure, folding screen, elevator, stairway, vent gutterElectrical applianceRefrigerator ...