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Drilling Machine Mqt-130/3.2 Pneumatic Coal Half-Coal Rock Mine Rotary Drilling Roof Bolters, Find Details and Price about Roofbolter Bolting from Drilling Machine Mqt-130/3.2 Pneumatic Coal Half-Coal Rock Mine Rotary Drilling Roof Bolters - Jikai (Hebei) Mechatronics Technology Co., Ltd.