Broca de carvão elétrica rotativo à mão da maquinaria de furo das brocas/broca portátil industrial

Descrição de produto

Hand Held Rotatory Drills Keyword:electric coal drill; coal drill; portable drill Product Introduction Dry coal drill is a hand-held drill used in the soft coal layer and soft rock layer,with mine explosion-proof structure water injection device, can be safely used for mine where methane and coal dust explosion. Operating Principle 1. Appearance check: Before operation, check all parts of fastening pieces whether they are loose or fall-off or the cable is worm. 2. Flame-proof