... is mainly used in metallurgy, mine, mine, railway, highway tunnel, hydraulic culvert, underground mines Lane and military culvert excavation works, construction ... form, and hydraulic track-type for the user to choose.Product Type 1.2M3 Qu Rail Type 1.6M3 Qu Rail Type 2.5M3 Qu ... Rail Type4M3 Qu Rail Type6M3 Qu Rail Type 8M3 Qu Rail Type Volume M3 1.2 1.6 2.5 ...