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Letter 12027 SEEKING PASSIVATION WITHOUT CHROME ON GALVANIZED SURFACE [India]
Dear sir, We are doing galvanizing on tubes with chromium based olive green passivation. We want to avoid passivation with chromium based solution. Is there any passivation (olive green colour) chemical without chromate. so that effluent maint. is avoided. RAMCHANDRA TALWANDE
Dear Reader: please choose what you want to do.
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