we can produce follow cargo trolleys: go straight cargo trolley, turntable roller skids, crawler type roller skate, steerable machine skate, veered moving roller skids, geared roller skids, and so on. According to the wheels materials of the cargo trolley, it have follow kinds: PU wheels cargo trolley, nylon wheels roller skate, steel wheels machine skate. Machine skates can move heavy duty loads easily and safety, the heavy loads can be lifted onto the skates using either a roller bar or hydraulic toe jack before moving large machinery. Moving dollies are low profiles, which means with a low overall height, assuring user safety while transferring heavy loads with a low center of gravity. Go straight roller skates contains single or double or more rows of rollers for straight forward movement. Our company Shan Dong Finer Lifting Tools co.,LTD produced all kindes of machinery moving skates professionally for more than 20 years. Our machine rollers classifies as follow: 3-point roller dollies, go straight moving skates, crawler type moving roller skids, swivel machinery rollers, rotating moving dolly, nylon wheels roller skids and so on. Steerable machine skate, which have the operate bar to handle the direction when moving equipment. Normally have three or more sets works as one group. Cargo trolley is one kinds of material handling and moving tools, applied on solve material handling and moving problems, also used on warehouse, storage, installation, moving and handling works. Shan Dong Finer Lifting Tools co.,LTD Email:sales@cargotrolley.com http://www.cargotrolley.com/