The hook is an important component in crane. Hook is divided into single and double hook according to the shape and forging hook and laminated hook according to the manufacturing method.
 
NHI manufactures large hook for decades, is a professional manufacturers of large hook, the main production mode includes loose tooling forging and hammer forging, NHI owns 8 sets of braised die, including 63 tons double hook, 75 tons of single hook, single and double hook 100 tons, 125 tons single hook, 217 tons double hook and 235 tons double hook, the maximum product is 600 tons of hook. Hook supplied by NHI has been used in the crane equipment of AP1000 nuclear island ring project.