Joseph Bonvallat SA
Treatment and coating of metals
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    | Joseph House Bonvallat SA, founded in 1937, is able to offer a clean and neat.
Activities: diamond grinding, polishing, electroplating, surface treatment. Materials: precious metals. Plating gold "G", "Bicolor". Browning 2N18, 1N14, 3N, 4N, 5N. Silvering. Palladium. Rhodium. Platinum. Chroming gloss / matt. Chroming black matte / gloss. Nickel. Applications: watches, jewelry, goldsmith. Fine turning of watches cases and Galvanoplating
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