Shanghai and the margin controlling indoor air testing Company Limited   

        Shanghai and margin of indoor air governance network is the official professional technology company interior environmental governance, to the latest modern technology of automobile tail gas treatment such as R & D, marketing and service of environmental protection series. Shanghai and the edge of environmental protection science and Technology Co Ltd stand in the forefront of environmental protection, air treatment products through the identification of the authority of Shanghai Academy of building research, and obtained the qualified product quality inspection certificate, enjoy the international mutual recognition in 44 countries. The company in response to "city -- better life" theme of the Expo, "and the edge -- make the environment more health" for the purpose, to create a green city, to create a healthy life and work.

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