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| Changsha Hengfeng Superhard Material Co., Ltd. Founded in 2000, CHANGSHA HENGFENG SUPERHARD MATERIALS CO, LTD is an industrial group integrated with research, development, manufacture and sales of Synthetic Diamond Powder, Cubic Boron Nitride, and their products in China. With the company's philo... Member since 7 November, 2012, China - Hunan | | | | Changsha Hengfeng Superhard Materials Our company is a professional synthetic diamond, diamond micro-powder and diamond mesh material. manufacturer with years's experience. Hengfeng has strong technical force and perfect testing means. All the products are produced according to national ... Member since 28 November, 2012, China - Hunan | | |
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