Zhang Jianhua
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Patents
65Mn钢电火花脉冲放电表面强化工艺
2019-04-15 Hits:
Patent Applicant:dongchunjie,Zhang Jianhua
Application Number:201010527984.0
Number of Inventors:2
Service Invention or Not:no
Application Date:2010-11-01
Publication Date:2013-06-01
Authorization Date:2013-06-01
Publication Date:2013-06-01
Application Date:2010-11-01
Authorization Date:2013-06-01
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