... acid in waste water, easy to be treated, high economic efficiency.The technique is stable, easy to maintain ... a little bigger, make it activated by electrolyzing for 1-2hours before trying plating, Pay attention to ... level, If much deposit exists in the bath for not to be filtered too long, excess BaCO3 ... make-up bath volume. WR-1 Additive for High Efficiency & Wide-range Temperature Chromium Plating