Shouqing Chang

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Xinxiang City, CN

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Patents Grantslast 30 patents

Information Patent Grant
Condensing heat-exchange copper tube for an flooded type electrical...
- Patent number 7,762,318
- Issue date Jul 27, 2010
- Golden Dragon Precise Copper Tube Group, Inc.
- Chuanfu Yu
- F28 - HEAT EXCHANGE IN GENERAL

Patents Applicationslast 30 patents

Information Patent Application
Condensing heat-exchange copper tube for an flooded type electrical...
- Publication number 20070131396
- Publication date Jun 14, 2007
- Chuanfu Yu
- F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...