Pneumatic Crawler Drill Mining Dth Hammer Bit Factory For
Product Descriptionmatic crawler drill mining dth hammer bit factory for gold mining equipment. 1.high and low air pressure down the hole drill bits. 2.Low air pressure holeDia.:65 220mm . 3.High air pressure hole Dia.:85 305mm. 4.Face type: drop center bit/concave face/convex face/double gauge face/flat face bit. 5. Carbide button shape
































