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      CR GEMS specializes in manufacturing high quality superabrasive products and polycrystalline diamond cutters. Our core products, such as diamond grit, micro diamond powder, cubic boron nitride, PDC cutters/PCD cutting tool blanks, large single crystal diamond, are widely used in the construction, machinery, photovoltaic, semiconductor, optics, jewelry, aerospace, and oil & gas industries. CR GEMS has two sites located in Shanghai and Shandong. We are committed to reliable quality, excellent service, constant innovation to meet diversified demands from the market. After years of development, CR GEMS enjoys great reputation both at home and from abroad. CR GEMS aims to collaborate with our partners to exploit innovative application of carbon based superabrasives on mechanics, optics, heat and acoustics, etc. .……
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