... red, sea blue, bright blue, grey waterproof steel roof tile Metal Steel Roof Tile: galvanizedPopular Color: deep red, sea blue, ... available, only need RAL numberUsevarious roofs and walls, used for the large size factory buildings,storages, exhibition halls, ... efficiency compound building material.2. Light in weight, heat insulation, waterproof, anticorrosion,fire resistant.3.handsome appearance and ...