Because in the electronic service technicians are often required to do the milling, printing and pad down the device, so it must find new ways to bite plates, printing via the Internet, and the thing is I have found one article whose contents specify that it use chemical ingredients as follows: Acid-hydrogen peroxide 35%: 47.66% hydrochloric acid: water, take in the milling, printing, only 3-5 minutes, which is less than the acid bites a Prince in the milling, printing, 30 – 60 minutes. Therefore, it has the science and education matters performance comparison of acid-bitten Prince. By using knowledge of the properties of acids and chemicals, who learned in the classroom. Various articles on the Internet and making your own experiment.
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