50m Electric Tunnel Drilling Rig

Jining Bafang Mining Machinery Co.,Ltd is one of the leading 50m electric tunnel drilling rig manufacturers and suppliers in China,Website:http://www.bafangjixiechang.com, welcome to buy cheap and low price 50m electric tunnel drilling rig made in China from our factory.ZLJ-250 Rotary mine tunnel underground drilling machine   Description of ZLJ-250 Rotary mine tunnel underground drilling The mine drilling machine mainly suitable for drilling gas drainage/discharge holes, water injection holes in coal bed, geological exploratory holes and various engineering holes. It's suitable for various co
50m Electric Tunnel Drilling Rig