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HINGE - SS TOP PRODUCTION

A duct is a pipe, tube or channel which carries air, gas, exhaust, or liquid from one place to another. Ducts are commonly used to exhaust heat and fumes out of and away from commercial ovens, cooktops, condensing units, and other restaurant equipment.

A hinge is a mechanical bearing that connects two solid objects, typically allowing only a limited angle of rotation between them. Two objects connected by an ideal hinge rotate relative to each other about a fixed axis of rotation: all other translations or rotations being prevented, and thus a hinge has one degree of freedom. Hinges may be made of flexible material or of moving components. In biology, many joints function as hinges like the elbow joint.