Z-20C Electric rock-loading machine can be used together with tramcar ... :with or without guide rope.Z-17,Z-17A,Z-20C and Z-30 can match used together with tramcar.Z ... -17A,Z-20C and Z-30 can match used by shuttle mine car ... ,Manganese,Uranium,Cobblestone,Marble Stone,Gyratory,Calcite,Clay, Dolomite Z-20C Electric rock-loading machine