ASTM A564-2019a (ASTM) 标准全文下载 This standard is issued under the fixed designation A564/A564M; the number immediately following the designation indicates the year of original adoption or, in the case of …
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ASTM A564-2019a (ASTM) 标准全文下载 This standard is issued under the fixed designation A564/A564M; the number immediately following the designation indicates the year of original adoption or, in the case of …
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