The ezcad2 rotary mark Diaries

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The date laser etching was invented is unidentified but we recognize that laser engraving was reported to be used for the first time in 1978. Since the two processes are quite very similar (laser engraving will involve some level of melting), the origin of laser etching is arguably the same https://atavi.com/share/v5y5kyzrqakk


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