air-leg rock drill [矿业] 气腿式凿岩机

air-feed leg drill 气腿式钻机

air-leg diamond drill 气腿式金刚石钻机

high-frequency air-leg rock drill 高频气腿式凿岩机

Wind air leg rock drill 气腿式风动凿岩机

air-leg g drill 气腿式钻机

Air-leg pneumatic rock drill 气腿式风动凿岩机

air-leg g diamond drill 气腿式金刚石钻机

Drill air-leg 气垫式钻支