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Home > About us > >>Scientific Innovation >>Patent Technology


 Patented technology




1. Name of Utility Mode: a kind of automatic manometer calibrator
        Patent No:ZL 02 2 84501.1



2. Name of Utility Mode: a kind of automatic weight correction and compensation mechanism used on automatic manometer calibrator
        Patent No:ZL 02 2 84499.6



3. Name of Utility Mode: a kind of automatic pressure adjustment and control unit used on automatic manometer calibrator
        Patent No:ZL 02 2 84498.8



4. Name of Utility Mode: a kind of automatic weight adding and reducing controlling mechanism used on automatic manometer calibrator
        Patent No:ZL 02 2 84497.x



5. Name of Utility Mode: Sensor for downhole electromagnetic flowmeter
        Patent No:ZL 02 2 84500.3



 Patented Technology

1. CM-1Force Tube Manufacturing Technology of Mass Flowmeter



2. C –Type bourdon tube manufacturing technology of weight indicator



3. Amplifying mechanism manufacturing technology of dual-pointer of pressure gauge on weight indicator



4. Design and manufacturing technology for rubber diaphragm hydraulic sensor on weight indicator


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