Fengru Zhang

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Beijing, CN

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Patents Grantslast 30 patents

Information Patent Grant
Fully vulcanized powdery rubber having a controllable particle size...
- Patent number 6,423,760
- Issue date Jul 23, 2002
- China Petro-Chemical Corporation
- Jinliang Qiao
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...