Zhang Jianhua

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一种高炉开铁口机用钻头
2019-04-15  Hits:

Affilication of Author(s):机械工程学院
Patent Applicant:Zhang Jianhua
Type of Patent:实用新型
Application Number:201020145526.6
Number of Inventors:1
Service Invention or Not:no
Application Date:2010-03-31
Publication Date:2010-11-24
Authorization Date:2010-11-24
Publication Date:2010-11-24
Application Date:2010-03-31
Authorization Date:2010-11-24