How do trailer dock locks work?

What Are Vehicle Restraint Systems? How do trailer dock locks work? Why it is necessary to use trailer dock locks?
Vehicle restraints systems also refer to trailer restraint systems, trailer dock lock, truck restraints, etc. It is installed at the loading dock. When loading and unloading, the vehicle restraint firmly locks the truck’s tail rod to avoid the trailer accidentally moving or being driven away, resulting in serious safety accidents, like injury, product damage, etc.
Please click following link to get detailed introduction of trailer restraint systems.
guauma-sh.com/...
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Other related loading dock equipment:
Dock Levelers: guauma-sh.com/...
Dock Seals/ Dock Shelters: guauma-sh.com/...
Warehouse Loading Dock System: guauma-sh.com/...
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