Stone Coated Steel Roofing Tile (Ripple Design) Colorful Stone Coated Roofing Tile(Ripple Tile) :Stone coated steel roofing tiles is based on Al-Zn steel. The surfaceand back protective films, together with the alloy composed of...
Diamond Tools for Geological Drilling Hlyd016 Diamond toolsApplications: Impregnated diamond core bits widely used for mineral exploration, geological exploration, water and electricity&com...