Wet type electric coal drill

chinacoal072kw electric coal drill , Wet type electric coal drill,Electric coal drillWet type electric coal drillWet type electric coal drillModels ZM12TX, ZM15TX series electric coal drill accord to the stipulations of FLAME-PROOF TYPE ELECTRIC EQUIPMENT “d” of EXOLOSION-PROOF ELECTRIC EQUIPMENT USED IN EXPLOSIVE ENVIRONMENT. They apply to mine wells where have methane of coal-dust explosive dangers and are used for drilling mid-hard and bard coal beds. The drills have the