Tianjin Qiangli Pneumatic Tools Commerce & Trade Co., Ltd mainly produces various kinds of pneumatic rock drills. Our main produces including: 1 air leg rock drill and their matched air legs---- YT23 (Atlas Copco7655), YT23D(Atlas Copco7655D), YT24, YT27, YT28,YT29A 2 hand hold rock drills ----YO18, YO20, Y19, Y24, Y26, YSP45 3 Internal combustion gasoline rock drill YN27,YN27C 4 drill spare parts---drill bits (chisel bit, cross bit, button bit), drill rod (integral rod, tapered rod, extension rod), coupling sleeve, shank adapter, copper nut 5 jack hammer and other pneumatic tools 6 air hose