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JIS C2324-3-1-2020 电工用层合纸板--第3-1部分:单项材料规范--层合预压纸板 Laminated pressboard for electrical purposes -- Part 3-1: Specifications for individual materials -- Laminated precompressed pressboard JIS C2324-3-1-2020 电工用层合纸板--第3-1部分:单项材料规范--层合预压纸板 Laminated pressboard for electrical purposes -- Part 3-1: Specifications for individual materials -- Laminated precompressed pressboard

JIS C2324-3-1-2020 电工用层合纸板--第3-1部分:单项材料规范--层合预压纸板 Laminated pressboard for electrical purposes -- Part 3-1: Specifications for individual materials -- Laminated precompressed pressboard

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