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   We have strong technology power and advanced examination equipments. Our products not only completely reach the National Standard, but also have passed ISO9001 quality management system certification.

   Our products are popular in the domestic market, at the same time, we enjoyed a good reputation from the foreign customers. The products are extensively used to mining, metallurgical, oil, project machinery and chemical industry. Since our establishment in 2001 to now, we have obtained many awards from our province and city government.

   We will forever insist on the tenet: Man-oriented, Self- confidence and Self- reliance, Continuous enterprise, and Never self-satisfaction. The quality principle is: do our best to meet customers' requests, offer our best products and perfect service, persisted improve our management to make JJHD more beautiful and more famous.

    We are looking forward to establish a friendly, serious and sincere business relationship with you.