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Please kindly be noted that we are one professional manufacturer / exporter of rock drilling tools. Our main products include button bits, tricone bit (rotary bit) , down the hole hammer bit, cross bits, chisel bits, pick cutters, all steel cross bits, road picks for grader, road planing and trenching bits, drill rod, coupling sleeve, core bits, coal cutters, pick cutters, carbide tips and other rock drilling equipment, which are widely used for mineral exploration, geological prospecting, excavation engineering, tunneling, mining, quarrying, construction for road, highway, civil engineering.