GB/T 39484-2020 纤维增强塑料复合材料 用校准端载荷分裂试验(C-ELS)和有效裂纹长度法测定单向增强材料的Ⅱ型断裂韧性

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文档分类 : 行业标准

更新时间 : 2024-08-24 10:31:52


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