Yong hua Shang

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Yantai, Shandong Province, CN

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Patents Grantslast 30 patents

Information Patent Grant
Hole jet reactor and a process for the preparation of an isocyanate...
- Patent number 8,333,927
- Issue date Dec 18, 2012
- Ningbo Wanhua Polyurethanes Co., Ltd.
- Jiansheng Ding
- C07 - ORGANIC CHEMISTRY

Patents Applicationslast 30 patents

Information Patent Application
Hole jet reactor and a process for the preparation of an isocyanate...
- Publication number 20100137634
- Publication date Jun 3, 2010
- Jiansheng Ding
- C07 - ORGANIC CHEMISTRY