... sharp and has a long life. Features for Diamond Blade:We are factory specializing in research and manufacture of ... saw blades, Multi-blades, small saw blade, DiamondWire, Diverse-shaped Diamond Tools, Diamond Millstones, Diamond Core DirllBit, ect. Our produces are ... for diameter 250mm to 800mm blade use for cuttinggranite, marble, concrete and aphalt. Diamond Blade for Cutting Concrete Asphalt and ...