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Стальной сплав для азотирования
摘要
申请公布号
SU75308(A1)
申请公布日期
1948.11.30
申请号
SU19400037874
申请日期
1940.11.10
申请人
CHERNYSHEV V.V.
发明人
CHERNYSHEV V.V.
分类号
C22C38/28
主分类号
C22C38/28
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