The issue of selecting gold mines

2018-12-25View Original

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Hello everyone, I would like to ask whether sodium pyrosulfite can be used as a substitute for sodium sulfite in the selection of gold mines

Reply #22018-12-26

I have a manual on gold mining and smelting. Since you seem to be an expert in this field, I’ll sell it to you for 10 dollars

Reply #32019-04-28

Can sodium metabisulfite be used in food factories?

Reply #42019-05-25

This post was last edited by qugd on 2019-5-25 at 10:39 ;P. You really understand the original poster – you must be aware that they are an outstanding genius in the field of gold extraction techniques in recent years

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The issue of selecting gold mines

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