Slag machine commonly used in coal, steel, and the ground slag lifting, can the subway crossing of digging, the general working strength is higher, use level of A6 door type slag machine, our factory for such industrial design professional slag of door type. The working level meets the regular use. Special lifting equipment for the driver's room. Normally designed for frequency control of motor speed zhongyuan co., LTD. Is specialized in manufacturing various single-beam crane, double-beam crane, gantry crane, gantry crane, metallurgical, explosion-proof cranes, electric hoist, lifting equipment.