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- BS 448:1947 Electronic valve bases, caps and holders

【国外标准】 Electronic valve bases, caps and holders
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适用范围:
暂无
标准号:
BS 448:1947
标准名称:
Electronic valve bases, caps and holders
英文名称:
Electronic valve bases, caps and holders标准状态:
被代替-
发布日期:
1947-06-08 -
实施日期:
出版语种:
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