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<p>[QUOTE=&quot;Cherryhill, post: 402354, member: 70&quot;]This example, however, is wheel (gray) cut. If the surface is then polished it&#039;s not called gray. </p><p>In plate etching, the design is applied with a stencil of wax resist, the acid attacks the glass where there is no resist. </p><p>In Needle Etching, the piece is covered with resist, and the design is applied by a needle, driven by a mechanical device. The acid then attacks the glass where the needle removed the resist.[/QUOTE]</p><p><br /></p>

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