There are the modern production equipment and advanced inspecting instruments in our factory. We adopt the international new techniques and advanced technology of production and we also combine them with a research-development by self.

Our Product

Since 1958, it is 61 years HongBaoShi has been working only for honing stone, dressing diamond-wheel stone, grinding points.

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Product Application

Honing oil stone, reticulated oil stone, is the leading product of our factory. With the development of diamond products in the 1980s and 1990s, the use of silicon carbide ceramics gradually is decreased, but the superior of silicon carbide can not be replaced by diamond. It can reduce the tearing when processing and metal folding defects of the inner hole surface of cylinder liner. In recent years, with the quality of automobile Emissions has been upgraded, the advantages of silicon carbide are highlighted again. The silicon carbide sand bar produced by our factory has partly replaced the products that import. At present, it has met the high-end mesh requirements of world famous brands such as Cummins, Steyr, Daimler, Ivico and Ford.

Production Market

Our company specially produce the sharpening stones for sharpening the diamond grinding wheel. We export 90,000 ~ 1,500,000 pieces every year. The sharpening stone have high dimensional accuracy and high quality.

Our Service

1. The quality of products is high.

2. Experience in production.

3. Modern production equipment and advanced testing instruments

4. Adopt international advanced production technology and combine it with independent research and development.