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Why You Should Install a Hook Lock A hook lock will prevent thieves from stealing the contents of your van by securing to the vehicle door. They also reduce the likelihood of accidents on the job site caused by faulty spring latches on standard sling hooks that do not snap shut when not under load. This paper employs bifurcation and numerical continuation theories to study the motion characteristics of a particular kind of hook lock mechanism. To optimize the unlocking force the impact of the weight of the landin
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