翻译:Construction hoist construction elevator commonly known, is a hanging cage manned, loading, along the rail transport of construction machinery under the shelves. It is the high-rise building construction in the main vertical transportation equipment. Through rack and pinion gear to hoist up and down along the track of a lif
翻译:Construction hoist construction elevator commonly known, is a hanging cage manned, loading, along the rail transport of construction machinery under the shelves. It is the hig