| We produce many types of massory drills and electric hammer drills, e.g: J1 type for chamfer electric hammer drill, J2, J3, J4 type chopping bit for drilling the equipment installation holes in brick, stone and concrete wall, J5 type for rotary rig bits used to constructional engineering, quarrying and tunnel boring, J6 type to mount the step type of shaving bits, J7 type to mount starters. |
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