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Black Passivation Job Coaters Needed

I am looking for professional job coaters in US, Europe and ASIA (esp. China) capable to handle big volumes of casting parts (up to 300 mm, 1 kg). Required is Zn-Ni black passivation process, quality requirement C5 I, ISO 7253 720h, slightly less may be discussed.

Joerg Schumann-Troeber
- Germany
November 29, 2011

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