18px Arial, Helvetica, sans-serif; WORD-WRAP: break-word; WHITE-SPACE: normal; ORPHANS: 2; COLOR: rgb(51,51,51); WORD-SPACING: 0px; PADDING-TOP: 0px; -webkit-text-size-adjust: none; -webkit-text-stroke-width: 0px\\">Pneumatic rock drill is a kind of high efficient drilling machinery. It is widely used in rock drivage and various

18px Arial, Helvetica, sans-serif; WORD-WRAP: break-word; WHITE-SPACE: normal; ORPHANS: 2; COLOR: rgb(51,51,51); WORD-SPACING: 0px; PADDING-TOP: 0px; -webkit-text-size-adjust: none; -webkit-text-stroke-width: 0px\\">blasting hole drilling in the drilling operation, is mine, railway, traffic, water conservancy construction regarding

18px Arial, Helvetica, sans-serif; WORD-WRAP: break-word; WHITE-SPACE: normal; ORPHANS: 2; COLOR: rgb(51,51,51); WORD-SPACING: 0px; PADDING-TOP: 0px; -webkit-text-size-adjust: none; -webkit-text-stroke-width: 0px\\">the project of the important tools. Structure features: this machine adopts bowl with valve distribution form, 

18px Arial, Helvetica, sans-serif; WORD-WRAP: break-word; WHITE-SPACE: normal; ORPHANS: 2; COLOR: rgb(51,51,51); WORD-SPACING: 0px; PADDING-TOP: 0px; -webkit-text-size-adjust: none; -webkit-text-stroke-width: 0px\\">reasonable structure, flexible. With light weight, high drilling speed, low gas consumption, small vibration, easy 

18px Arial, Helvetica, sans-serif; WORD-WRAP: break-word; WHITE-SPACE: normal; ORPHANS: 2; COLOR: rgb(51,51,51); WORD-SPACING: 0px; PADDING-TOP: 0px; -webkit-text-size-adjust: none; -webkit-text-stroke-width: 0px\\">to operate, low failure rate and long life of parts, as well as good economic benefit