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标题: ASTM D1709-15a [打印本页]

作者: ygs67 时间: 2016-2-23 08:54:52 标题: ASTM D1709-15a

ASTM D1709-15a Standard Test Methods for Impact Resistance of Plastic Film by the Free-Falling Dart Method

作者: admin 时间: 2016-2-23 16:34:11

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