Determine: 
Definitions:
Holland B-Lock
A proprietary locking mechanism used in the transportation and logistics industry, particularly for securing trailers.
Adjusting Nut
A component used in machinery and equipment to adjust the tension or position of other parts.
Rotate Bushing
A mechanical component used to provide rotational movement within a system, often with the capability to support axial or radial loads.
Coupler Bolster
A component in the undercarriage of a railway vehicle that supports the coupler, which connects to other rail vehicles.
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