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2008 Huichang obtained Certification of Utility Patent - concerning Hydraulic Pump Rotor |
Publish time: : 2012/4/2 17:27:10 |
Huichang Company obtained Certification of Utility Patent (concerning Hydraulic Pump Rotor), approved by the State Intellectual Property Bureau of the People's Republic of China on June 11th, 2008. |
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