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Problem in acid copper barrel

I'm facing a problem in acid copper barrel. when we unload the material it becomes blackish.

Krishan Bhardwaj
Manager - New Delhi, India
August 7, 2008

September 4, 2008

Sir,
You are not given the operating parameters. If there is excess leveler in your bath leads to same problem. Control your brightener additions in your bath.

Shoban Kesarapu
plating chemicals supplier - Secunderabad, A.P., India

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