Crank up lift mechanism for table

When you hand wheel operated a screw jack, you can use a hand wheel or a hand crack with handle. Black alu. hand crank or Cast iron hand wheel are available for customers' choice. Crank up lift mechanism for table is exported to Canada customers. The system is consist of 4units 2.5 ton jacks, 4units couplings, 2units connecting rods, 2units cast iron handwheels and 4units gears.