Guozheng Quan

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Chongqing, CN

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Patents Grantslast 30 patents

Information Patent Grant
Large-size diesel exhaust valve and manufacturing method thereof
- Patent number 12,104,508
- Issue date Oct 1, 2024
- Cosco Shipping Marine Equipt & Spares (NJ) Co., Ltd.
- Hong Lu
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...

Patents Applicationslast 30 patents

Information Patent Application
large-size diesel exhaust valve and manufacturing method thereof
- Publication number 20240328333
- Publication date Oct 3, 2024
- Hong LU
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...