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标题: ASTM G171 − 03 (Reapproved 2009)´2 [打印本页]

作者: zzcnhic 时间: 2017-7-8 00:19:45 标题: ASTM G171 − 03 (Reapproved 2009)´2

[attach]139317[/attach]ASTM G171 − 03 (Reapproved 2009)´2
Standard Test Method for
Scratch Hardness of Materials Using a Diamond Stylus

作者: admin 时间: 2017-7-9 14:16:49

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