China Down The Hole DTH Hammer - China DTH Hammer, Down ...
C) Low pressure series D) High efficiency high pressure series E) Reverse circulation series 2)Outside diameters: 61.2~275mm 3)Drilling diameter: 68~1000mm Application They are widely used for mine, quarry, road construction for the drilling and blasting work, water well drilling, slope protection, anchoring, etc. Competitive Advantage:
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