... crane is usually used, generally in the 1-5 tons of load, running speed 1-60M/min. Directory Construction elevator ... -B-type construction hoist, high efficiency, applicability, manifested in: 1, lift carrying two tons of building materials or passages 20 ... maintenance. SSE200-B-type construction lift safe and reliable, in: 1, equipped with high-performance electromagnetic brake, speed brakes, broken ...