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  • Users: Bobchan
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  1. Bobchan

    Aluminum 2000 & 3000 series

    Hello, I'm having problems etching an Aluminum 2000 & 3000 series. I've tried the Keller's and 10% phosphoric acid, but none have worked so far. My objective is to see the grains by a digital mircoscope. Do you have any other suggestions I could try?

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