Siqi Zhang

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Zhejiang, CN

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Patents Grantslast 30 patents

Information Patent Grant
Lead-free free-cutting copper-antimony alloys
- Patent number 7,628,872
- Issue date Dec 8, 2009
- Ningbo Powerway Alloy Material Co., Ltd.
- Ming Zhang
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...

Patents Applicationslast 30 patents

Information Patent Application
Lead-free free-cutting brass alloys
- Publication number 20060289094
- Publication date Dec 28, 2006
- Ming Zhang
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...