электрохимическая очистка сварных швов
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![восстановление или очистка алмазного абразива [электро-химический способ]](https://sun9-18.userapi.com/MSKoWGPUnv2pJQqfuRBYEZ-PA-Vq7DFS1IHfig/BqiGln3VNRs.jpg)