Yun ZHAO

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Panzhihua, CN

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Patents Grantslast 30 patents

Information Patent Grant
High carbon content and high strength heat-treated steel rail and m...
- Patent number 9,157,131
- Issue date Oct 13, 2015
- PANGANG GROUP CO., LTD.
- Ming Zou
- C21 - METALLURGY OF IRON

Patents Applicationslast 30 patents

Information Patent Application
STEEL RAIL FOR HIGH SPEED AND QUASI-HIGH SPEED RAILWAYS AND METHOD...
- Publication number 20130193223
- Publication date Aug 1, 2013
- Pangang Group Panzhihua Steel & Vanadium Co. Ltd
- Dongsheng Mei
- C21 - METALLURGY OF IRON
Information Patent Application
HIGH CARBON CONTENT AND HIGH STRENGTH HEAT-TREATED STEEL RAIL AND M...
- Publication number 20110253268
- Publication date Oct 20, 2011
- PANGANG GROUP CO., LTD.
- Ming ZOU
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...