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7 thoughts on “new york wholesale costume jewelry How to refine gold by computer mobile phone motherboard”
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thai wholesale gold plated jewelry manufacturers Heating is melting, putting in metal iron category, can replace the copper in it -it is difficult to make a profit using this method.
can also use nitric acid to dissolve the metal on the main board first, add metal
to add iron — you can get copper and other
to add copper — you can get it.
It a little bit of the remaining point is attached to the board, or the at the bottom should be gold ...
Note! Nitric acid will produce NO2 and NO -toxic and pollute atmosphere!
christina collection jewelry wholesale Refine very little, one ton of motherboard can refine 80 to 110 grams of gold
lead nickle and cadmium free jewelry wholesale There seems to be a small amount of gold in the computer! 1 Studies show that the inner parts of a waste mobile phone contain a variety of valuable materials, telling everyone a unknown unknown huge profiteering industry! (Utilizing the electronic garbage of electronic garbage such as waste computers, mobile phone CPU memory, etc.), if you want to know more details, you can search for Liu's gold.
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sweet treats jewelry wholesale It seems very few, there is a little bit in the CPU, right?
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