LongKou Mingyin Mining Parts Co., Ltd was establishend in April 1998. It is a professional manufavturer with integration of the research & development, production, sales and service of wear-resistant castings like casting balls, castings & forgings and lining plate. The company's leading products include high chrome alloy casing ball and castings & forgings. After several years of rapid development, now it has become a large-scale enterprise with the annual production of more than 10, 000 tons of wear-resisting materals including high, medium & low chrome alloy casting ball and castings & forgings. It has developed itself as akry backbone enterprise for economic development in LongKou city and has becone one principal member of China's wear-resistant materisl industrial technoligy innovation strategy alliance.

The company's registered capital is 10 million yuan. It covers an area of 20, 000 square meters and the building area reaches more than 4, 000 square meters. It owns three manufacturing workshops, six sets of intermediate frequency electric furnace and one substation. In quality inspection center, the detection equipment is complete and the chemrcal composition of products adopts spectrum for whole-process control. The company has successively passed the certificatiom og ISO9001; 2000quality management systen, the certificatiom of ISO14001; 2004 environmental managment system and GB/T18001-2001 occuptiom health & safety certification. The advanced testing equipment, perfect quality assurance system and good production environment have laid a solid foundation for high-quality"Mingyin brand"products