Hua Dong

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Hangzhou, CN

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Patents Grantslast 30 patents

Information Patent Grant
Welded high-pressure fuel pump roller tappet
- Patent number 10,408,093
- Issue date Sep 10, 2019
- Hangzhou XZB Tech Co., Ltd
- Na Xu
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Grant
Floating action type servo-valve
- Patent number 9,115,729
- Issue date Aug 25, 2015
- HANGZHOU XZB TECH CO., LTD
- Hua Dong
- F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL

Patents Applicationslast 30 patents

Information Patent Application
WELDED HIGH-PRESSURE FUEL PUMP ROLLER TAPPET
- Publication number 20190085731
- Publication date Mar 21, 2019
- Hangzhou XZB Tech Co.,Ltd
- NA XU
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Application
FLOATING ACTION TYPE SERVO-VALVE
- Publication number 20130180606
- Publication date Jul 18, 2013
- Hangzhou XZB Tech Co., Ltd.
- Hua Dong
- F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL