About us We are a professional productions base of series of rock drilling tools, mining tools, DTH Drill tools. Construction tools and excavating coal pick cutter tools , we can also produce other products according to the customers requirements. We sincerely welcome our friends of both home and abroad to come for business talks. About products 1. Integral drill steels (Integral Drill Rods) Shank H22x108mm, H19x108mm, standard hex. Bit

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