A. Well you can use 1:3 solution of HCl with water and use a rectifier with low D.C. current of 6 volts with s.s the cathode and the work piece as anode then check for the depth required. Good luck.M. KhawarIsl
Last year I took a look at the question "Should Natural Gas Be Used To Power New Zealand ?", after reading an article from NZ PEPA executive John Pfahlert arguing that New Zealand should be building new gas fired power stations instead of trying to become carbon neutral, and concluded that...
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