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标题: ASTM D8188-18 [打印本页]

作者: 松雨霞 时间: 2018-10-12 11:16:11 标题: ASTM D8188-18

Standard Test Method for Determination of Density and Relative Density of Asphalt, Semi-Solid Bituminous Materials, and Soft-Tar Pitch by Use of a Digital Density Meter (U-Tube)

作者: admin 时间: 2018-10-14 09:49:02

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