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Teaching How to gold extraction process Recovery Refining How to recover and refine computer scrap with acid .Gold Refinery Refining Gold Recycle Gold extraction value of gold in cpu computer scrap circuits board.
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Hi I have so many unused waste mobiles if you need let me know thanks
ตอบลบGood day I need help please. I made 5 small batches of computer scrap with aqua regia.
ตอบลบAll 5 came out in dark green to black. No matter how much SMB I add it keeps on boiling.
No Gold has dropped out but there is lots of grey sludge that comes out.
Please help me with suggestions. I have phone boards to process and do not want to make same mistakes.
bonjour je voudrai savoir ou on peut acheter les livre gold extraction E-Book gold chemical.
ตอบลบHi sir Help me
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ตอบลบHello where do you buy eletronics? and I don't find your ebook thank you Alessandro from Switzerland
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