... 70X70 HOT SALE HAND ROCK DRILL AND AIR LEG ROCK DRILL APPLICATION OF HAND ROCK DRILL AND AIR LEG ROCK DRILL QUGONG Pneumatic Machinery has a ... low weight,reasonable structure,handy use and little air consumption.Air leg rock drill is mainly used for blasting holes and ... 81PICTURE OF HAND ROCK DRILL AND AIR LEG ROCK DRILL CERTIFICATE YT23D,YT28,YT24 Length 550-720mm Pneumatic Air Leg Rock drill (0.4-0. ...