ruohan04741 发表于 2018-8-23 16:39:23

ASTM C220-15 Standard Specification for Flat Asbestos-Cement Sheets

This standard is issued under the fixed designation C220; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.



admin 发表于 2018-8-31 14:37:38

谢谢您的分享,金币已奖励!
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