... double speed of chain hoists other kinds of hoists.2)Fixing wireless remote control to realize the remote control.3)Using ... The other feasible configuration user propose.Features:1) Reasonable structure 2) Favorable performance3) Smooth starting and stopping4) Safe and ... excellent exchangeability for parts and components 7) Saves electricityCapacityT1,2,3,5,1016,20Spanm7.5-22.5Lifting heightm6,9,12 ...