Rock drill bit

Located within Luoyang Hi-tech Development Zone, LUOYANG JIUJIU TECHNOLOGY CO.,LTD is specialized in production of tunnel boring machines, series of products of TBM tools, series of products of engineering drillers and rock breaking hobs, series of products of raise-boring machines and tools and series of products of wear resistant and heat resistant materials.

It is a national high-tech enterprise integrating scientific research, design, production, marketing and se...