Business overview

ChangSha RongHai Superhard Material Research Institute, located in ChangSha City, capital of Hunan Province China and founded in 1990’s, is a principal company integrated with research, development, manufacture and sales of synthetic diamond with an annual production capacity of more than 30 million carats. The Institute is a private enterprise founded by Professor Xu Feilong, director of the research institute, who was one of the two former chief experts of material sector in China Changsha Mining and Metallurgy Research Institute. He has been engaged in research and development of superhard material since 1970 and initiated applying powder catalyst in particular to producing fine grain diamond in 1980’s, and enjoys great popularity in this field. Ronghai’s modern technology, stringent enterprising standards, and unparalleled performance are the result of constant innovation and the pioneering of new concepts in abrasive technology, thus its products are well recognized and sell well both at domestic and overseas markets. Types of product available are MBD and RVD, among which, MBD series are our leading and key product. They are exported to USA, Europe and other countries in the world. With the experience of the last two decades of research in and manufacturing of synthetic diamond, we are now the leader in state-of-the-art formulation and manufacturing of custom abrasives in China. We always adhere to the customer-oriented policy and take quality as our lifeblood. We are all ready to answer any questions you ask and to try our every effort to meet your specific needs. Should you be interested in our products, please contact us without any hesitation. Your enquiries and orders will be welcome all the time.

Industry Gems and Jewellery
Business Type Manufacturers & Exporter/Importer
Establishment Year 1990
Firm Type Proprietorship
Expand Level International

Products & Services

We are Manufactures and Exporters of Synthetic Diamond.

Our Products are
- MBD Series
- RVD Series

Contact Details


Gaotang, Shaping, Laodaohe Town Kaifu District, Hunan
Changsha, 410152 () - (China)


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