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Need molten sodium dichromate blackening

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We need sets of stainless steel [4 plates, under 1 ft sq] and copper [1 plate under 1 ft sq] to be blackened. I'm looking for sodium dichromate bath because I understand it is very durable. We want the stainless and copper pieces to look the same when finished. Once the 1st set has been approved, it will go into small production runs of 5 sets in a batch. One side of each plate needs to be masked so as not to be blackened. Ft Collins and Denver areas are fine.

Thank you.

Laura D [last name deleted for privacy by Editor]
manufacturing - Loveland, CO, United States
^- Sorry! This RFQ is outdated -^

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