DIN EN 60641-3-1 SUPP 1 (2009-09)现行
Pressboard And Presspaper For Electrical Purposes - Part 3: Specifications For Individual Materials - Sheet 1: Requirements For Pressboard, Types B.0.1, B.0.3, B.2.1, B.2.3, B.3.1, B.3.3, B.4.1, B.4.3, B.5.1, B.5.3 And B.6.1; Supplement 1: Comparison Of The Types
出版：Verband Deutscher Elektrotechniker
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