Zhejiang Yinying Switch Factory is a private enterprise ,which centralized technology, manufacture and trade. It is established in 1992, and there are 200 employee now. The enterprise uses Shanghai as the platform of the enterprise show, has set-up Shanghai Yinying Switch Factory,Shanghai North Asia the Covered Copper Screen Board CO.,Ltd year by year. We draw on the local economic and the sale-net around the nation completely,so our products has selt ererywhere in the country, the sale is improved year by year.