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| тонкий слой олова (для защиты подшипников) The bearing surface is coated with a thin layer of tin flash plating having a thickness of about 1 micron. I. Havkin) | |||
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| тонкий слой олова (для защиты подшипников) The bearing surface is coated with a thin layer of tin flash plating having a thickness of about 1 micron. I. Havkin) | |||