作废 JB/T 3890-1999
硅碳棒 硅碳棒 Silicon carbide heating elements
发布日期:1999-10-08
实施日期:2000-03-01
分类信息
标准简介
相似标准/计划/法规
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硅碳棒

最后更新时间 2025-08-30