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{{Wiktionary|preform}} '''Preform''' may refer to: * Preform, a [[optical fiber#Preform| piece of glass used to draw an optical fiber]] * Preform, a piece of [[polyethylene terephthalate]] test tube shaped form blown into a completed bottle * Preform, an incomplete and unused basic form of a stone tool in [[lithic reduction#Blanks and preforms|lithic reduction]] * Preform, a specially designed [[Solder#Preform|shape of solder]] * Preform, a high quality, precision metal stamping used for a variety of [[Brazing#Preform|brazing and joining applications]] * PreForm, a [[Formlabs#PreForm|a software package from 3D printing technology company Formlabs]]
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