Our roller skids the model have follows:go straight roller skids,veered roller skids,three sets combined cargo trolley,crawler-type roller skids. Roller skate. Lifting bar and so lifting and moving tools. Shan Dong Finer Lifting Tools co.,LTD produce all kinds of industrial machinery mover professionally for more than 20 years. Cargo trolley used on moving heavy objects indoor or outside effortlessly, before cargo trolley working, it can be lifted using the roller crowbar or hydraulic toe jack, let the cargo moving trolley positioned easily.