3U Super Hard Products Co. We are a manufacture of old-stone(at)livecn Diamond bruting wheel/ Polycrystalline diamond(PCD)/Thermal Stable Polycrystalline diamond(TSP),CBN grinding wheel.PCD Series have a lower wearability than the TSP series. Meanwhile, compared with the natural diamond ,they have a higher rubbing efficience.Together with their unexampled price, PCD Series have become the first choice for nature diamond cutting & polishing nowadays.old-stone(at)livecn
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