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前言
Preface Central South Architectural Design Institute, with its solid technical power and qualified service, has gained an honest and innovative reputation throughout the world. ZB-DCT Underground Water equipment is solely excogitated by the Institute. It was designed to remove iron, manganese, and other heavy metals in underground water. The Purifier won golden prize in Beijing International Invention Exhibition. The Purifier is now a patent product that has been successfully utilized in more than 200 projects. In recent years, the Institute has had new progresses in the removal of manganese in underground water. We had excogitated a “manganese compound filter material”, which, through numerous tests and observations, had proved it to be durable, steady and instantly effective. The new compound filter material has been tested by the Environment and Hygiene Department of the Chinese Academy of Preventive Medicine and proved to have met all the requirements in <Drinking Water Equipment and Protection Material Safety Evaluation and Standards>.
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