horizontal lifting clamp

PDB type horizontal lifting clampApplication: horizontal lifting of steel plate.Material: low carbon alloy steelLoading range: 0 to 10 tonTwo pieces of clamp are used for the testing,but 2 pieces or 4 pieces are recommended for lifting operation,balance beam is needed for big size steel plate.Tested load is 2 times of working load.With lovk spring during the clamp non-work condition,locking device going in nature step-up,put the object in the clamp,the strength becomes the