American shackle has a unique, innovative, high quality, safety features, suitable for factories, mines, petroleum, chemical and shipping terminals. To ensure safety, quality and safety factor, the static load up to 3 times. From the weight of 5 tons to 150 tons. The laminated hook is riveted by cutting several sheets of steel plate, and the whole hook will not be damaged when the cracks occur in the individual American buckle plates. The safety is good, but the weight of the hook is large. Most of them are used for lifting or hoisting. Steel laden with bucket on the crane.