Centerless fine grinding cbn wheel for glass Grinding hard alloy,carbide rod,etc. Durable,wide range,less ... a very long period, very suitable for automation, semi-automatic and multiple machines in production steadily high-precision grinding. Our company ... producing Grinding Cutting Wheels,Gun Drills, Diamond Oilstone, Grinding Paste and Grinding File. We factory also have passed ISO9001:2000 quality ...