We are a professional Manufacturer & Supplier of diamond tools in China, we could provide you following products used on Granite Marble Concrete Ceramic Tile Glass and Steel... 
Diamond Cutting Discs/ Saw Blades 
Diamond polishing pads 
Diamond grinding wheel/bits 
Diamond drilling core bits 
Other Diamond tools accessory (router bits, engraving bits, backer....)  
If possible, we would like to do bulk cooperation at much more competitive prices, please contact us.
Advantage of buying from us: Directly from Professional Manufacturer & Supplier means 
"Use the same money to get better quality" or "Get the same quality products at lower prices" 
"Steady quality and great after-sales service"