• High-profile mining machine manufacturing brand

    Since 1987, CoJJ Group has continuously obtained more than 100 patents and authorizations for crushers and mills. The crusher and mill equipment developed by RJJ Group are exported to more than 160 countries and regions around the world. Recognition and trust.

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  • Service guarantee

    Our service commitment is not a slogan, an idea or an advertisement, and our service commitment is serious. To this end, we have built a large, systematic and standardized service guarantee system to ensure that each link is implemented in place and processed in detail.

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Hot Products

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HJ Series Jaw Crusher

By analyzing customers’ requirements and absorbing the world-class advanced technology, CoJJ developed the HJ series…

Mobile Jaw Crusher

Portable mobile jaw crusher is developed according to novel series stone crushing equipment’s design idea, the…

Vibrating Screen

The vibrating screen is a kind of sieving equipment of international advanced level, developed by our company on…