Established in 1958 ,our Factory is a state own company manufacturing geological drilling tools, horizontal directional tools and DTH China.We are now the strategic partner of Atlas Copco China,and we provide our good quality products to them.Our factory ...

Established by CRIMM (Changsha Research Institute of Mining and Metallurgy), Kingray has registered capital RMB 106.70 million total assets over RMB1000 million. It is comprised several subsidiaries holding companies, most which have been awarded ...