... after-sales service Our company produces the diamond grinding head sharp wear-resisting and the specifications ... : aeronautical material, crystal, glass, quartz, gemstone, stones, tile, ceramics, super hard alloy, graphite, plastics, FRP and ... such as molding, plane, cylinder, internal hole, furrow grinding and etc.Advantages: Good sharpness, high precision, not ... /2420×8×810 diamond roll grinding wheel