precoated steel sheet

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PPGI — is prepainted galvanised steel, also known as precoated steel, coil coated steel, color coated steel etc.A galvanised steel sheet in coil form is cleaned, pretreated, applied with various layers of organic coatings which can be paints, vinyl… … Wikipedia
photoengraving — /foh toh en gray ving/, n. 1. a photographic process of preparing printing plates for letterpress printing. 2. a plate so produced. 3. a print made from it. [1870 75; PHOTO + ENGRAVING] * * * Any of several processes for producing printing plates … Universalium

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