Haijun Ma

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Yancheng, CN

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Patents Grantslast 30 patents

Information Patent Grant
High-speed hydraulic forging press
- Patent number 10,850,468
- Issue date Dec 1, 2020
- ZHONGJUXIN OCEAN ENGINEERING EQUIPMENT CO., LTD
- Lianhua Zhang
- B30 - PRESSES

Patents Applicationslast 30 patents

Information Patent Application
Hydraulic Forging Machine And Method Of Replacing Upper Anvil Thereof
- Publication number 20200230690
- Publication date Jul 23, 2020
- Zhongkejuxin Clean Energy & Hot Forging Equipment Research and Development C...
- Lianhua ZHANG
- B30 - PRESSES
Information Patent Application
High-Speed Hydraulic Forging Press
- Publication number 20180281332
- Publication date Oct 4, 2018
- Zhongjuxin Ocean Engineering Equipment Co., Ltd
- Lianhua Zhang
- B30 - PRESSES