• 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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Belt Conveyor

CoJJ delivers the world’s most comprehensive range of Heavy-duty conveyor belts. Base on more than 30 years of…

LM Vertical Grinding Mills

According to customers’ requirements, CoJJ success in absorbing foreign experience and world-advanced technology,…

PY Cone Crusher

Adopting technology from the world, PY Series spring cone crusher has an excellent performance in secondary crushing…