4uvakish> A KSTATE swimming any metal is very harmful to human health!!! The metal in the burned state is partially exposed to evaporation of the metal itself!!! And it would be great if the metal washing could be done without the presence of a man!!! Any work in the first place should not harm human health!!! Science is the future of all mankind!! to

GreatInquisitor> I highly recommend Rosenthal’s textbook.
and #65279;
4uvakish> And what is your textbook???!!!!!