High Pressure Tungsten Carbide Nail Dth Drilling Hammer ...
SPM 3.5 inch High Pressure DTH Air Drill Hammer bit SPM335 is very popular in international ore mining drilling field. It is widely used in international ore mining drilling field. Drill-the-hold hammer. SPM 3.5' DTH Drill Hammer DHD335 drill holes from 90mm to 100mm. Matched drilling bits:SPM335-90,SPM335-100.
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