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May 2000

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Subject:
black oxide discoloration
From:
Angelo Hermoso <[log in to unmask]>
Reply To:
TechNet E-Mail Forum.
Date:
Tue, 2 May 2000 11:26:28 -0700
Content-Type:
text/plain
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text/plain (20 lines) 
hi! good morning. i just want to ask what are the other possible causes of discoloration we are encountering in our line. I already check the concentration and base from analysis, it is within our standard. I also check the temperature of the bath tank (chemicals) and it is ok.

Any help would be highly appreciated. Thanks in advance.

angelo

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