Taiwanese businessman Li Zhenghong set off the revolution in the valve industry, leading his crown dragon valve enterprises to achieve the "valve does not leak" myth. When Li Zhenghong took over Guanlong 12 years ago, his company's sales were only about 1%. Up to now, the company has developed a total of 15 high-tech new products, applying for and obtaining 25 patents. "Our market share is not the largest, but the quality of the valve has been adhering to the well." Lee said. Currently, the Three Gorges Project, the Oriental Pearl TV Tower, Shanghai Municipal People's Government, Yangshan Deepwater Port and other well-known domestic construction projects have Guanlong valve at work. Lee Zheng-hong, who studied taxation and taxation, is a layman in the valve industry, but he believes that technology is the key to the development of manufacturing enterprises.

Fan is a kind of driven fluid machinery, which depends on the input mechanical energy to improve the gas pressure and send gas side by side. Fan is China's customary abbreviation for gas compression and transmission machinery. Generally speaking, fan includes fan, blower and wind turbine.
Fans are widely used for ventilation, dust removal and cooling of factories, mines, tunnels, cooling towers, vehicles, ships and buildings, ventilation and induced draft of boilers and industrial furnaces, cooling and ventilation of air conditioning equipment and household electrical equipment, drying and selection of grain, air source of wind tunnel and air cushion vessel, etc

Ventilation Fan

Ventilation Fan

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