i, lifting or pulling m can be used to hoist, pull, load and dra can be widely used for road and bridge project, i.e. bridge, port, dock, and larges factories and mines, etc.II. Des is high speed electric control type for lifting. T mainly is used for materials lifting at construction site, factory, mine, port. It is especially used in bridge construction, wharf and other building foundation free fall punch piling work. III.Th from China is based on the bulk order quantity. Shantuo Meches variations depending on the importing country and quantity.gearboxes, a customer specific rope dru gearbox is based on a modular system. The rope drum is designed specific to the customer, whereby many standard rope drums are available. Rope speed up to 1,400 m/min.