Houbao QI

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Xuzhou City, CN

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Patents Grantslast 30 patents

Information Patent Grant
Switching valve, switching hydraulic system and crane
- Patent number 10,233,060
- Issue date Mar 19, 2019
- Xuzhou Heavy Machinery Co., Ltd.
- Zenghai Shan
- B66 - HOISTING LIFTING HAULING

Patents Applicationslast 30 patents

Information Patent Application
SWITCHING VALVE, SWITCHING HYDRAULIC SYSTEM AND CRANE
- Publication number 20180037447
- Publication date Feb 8, 2018
- Xuzhou Heavy Machinery Co., Ltd.
- Zenghai SHAN
- F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL