发布时间:2025-01-19 08:04:20
测试指标就是维卡软化点,是指工程塑料、通用塑料等聚合物的试样于液体传热介质中,在一定的载荷、一定的等速升温条件下,被1m㎡的压针压入1mm深度时的温度。测试方法可以搜索ASTM D1525。
海尔6公斤xqb60 m918洗衣机买回来后才发觉有个 漂甩二合一 步骤但有此不解
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