Any aluminum product may scratch or chip with use, exposing its natural silver color.

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Weinberger tackled those problems by designing his chip from scratch, finding ways to split out parts of laborious signal-processing tasks and handle them in parallel.

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If the chip or scratch has already begun to rust, lightly sand the area, and apply a thin coat of primer to any bare metal before painting.

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Flush with cash from its then- booming memory chip business, Samsung enlisted Nissan in 1994 to build a world-class auto business from scratch.

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