Qingsheng Zhang

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Shizuishan City, CN

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Patents Applicationslast 30 patents

Information Patent Application
METHOD FOR PASSIVATING TANTALUM METAL SURFACE AND APPARATUS THEREOF
- Publication number 20140076462
- Publication date Mar 20, 2014
- Ningxia Orient Tantalum Industry Co., Ltd.
- Aiguo Zheng
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...