JB/T 7565.4-2015 隔爆型三相异步电动机技术条件 第4部分：YB3系列隔爆型(Exd Ⅱ CT1～T4)三相异步电动机((机座号63～355)
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文档分类 : 行业标准
更新时间 : 2024-09-09 08:53:53
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