Zan YAO

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Shanghai, CN

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Patents Applicationslast 30 patents

Information Patent Application
STEEL FOR BOLTS, AND MANUFACTURING METHOD THEREFOR
- Publication number 20240209469
- Publication date Jun 27, 2024
- Baoshan Iron & Steel Co., Ltd
- Zan Yao
- C21 - METALLURGY OF IRON
Information Patent Application
HIGH-STRENGTH AND HIGH-FATIGUE-LIFE STEEL FOR CABLE, AND WIRE ROD A...
- Publication number 20230295784
- Publication date Sep 21, 2023
- Baoshan Iron & Steel Co., Ltd
- Zan YAO
- C21 - METALLURGY OF IRON
Information Patent Application
SPRING STEEL HAVING SUPERIOR FATIGUE LIFE, AND MANUFACTURING METHOD...
- Publication number 20210164078
- Publication date Jun 3, 2021
- Baoshan Iron & Steel Co., Ltd
- Zan YAO
- C21 - METALLURGY OF IRON