Jewellery refining machinery!

hi friends I am from INdia. I am intending to start a gold refining
factory in bombay. The main problem is to select which process
should I use. Because I intent to refine in large qty.INcase you
have any ideas on refining gold please tell me. Also I am looking
for some nice machinery which will refine the gold automatically or
atleast semi-automatically.

I have heard that shor international has a very good no-acid type of
simplicity gold refining product. Can you give me the review of this
product. Also If there is any second hand machine for sale at a good
bargain, I dont mind buying it.

Any other ideas which will help me to build a gold refining factory
are always welcome.

cheers
mithun