CERI is committed to the research, development and application of related technologies and products of municipal sewage treatment and reuse. Its products include a series of products such as municipal sewage treatment, municipal reclaimed water treatment, new urbanization sewage treatment and industrial park sewage treatment. The achievements have been put into use in several projects in Beijing, Hengshui, Cangzhou, Jieyang, Qionglai, Huaying, Zigong, Suining, etc., with stable and reliable application.