cargo trolley also called moving roller skids

we can produce followcargo trolleys: go straight cargo trolley, turntableroller skids, crawler type roller skate,steerable machine skate, veeredmoving 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.PU wheels cargo trolleycan be used on normal cement floor, will not hurt the cement floor. Steel wheels machine skate have