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linishing

vb. (present participle of linish English)

Wikipedia
Linishing

Linish is an engineering term that refers to the process of using grinding or belt sanding techniques to improve the flatness of a surface. The flatness may be two-dimensional, i.e. with the view of achieving a flat plate, or one-dimensional, e.g. with the view of achieving a perfectly cylindrical shape. The machine that does this may be called a linisher or a linish grinder. The technique may also be used, with finer grades of grindstone or sanding belt, to polish a surface.

A specific use of the term linishing is for the preparation of the ends of rubber extrusions that will be fused together to make a closed loop.