N/A manufacturer / supplier in China, offering HVAC Duct Galvanized Steel Coil (Self-Cleaning) Dx51d+Z 0.8mm Z180, Fireproof Roofing Galvanized Steel Coil (Class A) ASTM A653 0.6mm Z275, Roofing Galvanized Steel Coil (Anti-Corrosion) ASTM A792 0.4mm Z275 and so on.