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January 2001

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Date:
Fri, 12 Jan 2001 20:18:16 +0800
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  Hi, TechNetters:

 Does anybody know the present situation by using the ultra-filtration
system

  to recycle the developer and the stripper which should be discarded after
aging

  everyday.


  Are there many users or only some users in the States  to use UF  in this
PCB or etching process?

  Hope to get some ideas about the marketing or the users experience in
these alkali solution recycling.

  It is said to save much fee for treating the  waste solution   and COD
problem.

 Thanks

 Chung J. Lee /Hsin-Sun

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