spacer plate gasket

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Heat exchanger — An interchangeable plate heat exchanger Tubular heat exchan … Wikipedia
Washer (hardware) — Assorted washers: flat, split, star and insulated A washer is a thin plate (typically disk shaped) with a hole (typically in the middle) that is normally used to distribute the load of a threaded fastener, such as a screw or nut. Other uses are… … Wikipedia

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