Shenzhen city environmental science and technology company ltd. (beth source water cleaner) is located in the south of china at the state-of-the-art, economically well-developed, compatriot-friendly and environmentally sound production base in shenzhen city. In 2008, bess source was founded in china (shenzhen city) as a high-tech technology enterprise that combines specialized production and marketing of water purification equipment, and is one of china's large commercial water purification plants. Since the establishment of the company, the bess source has worked to build china's well-known water purification brand. It has been a powerful intellectual choice to develop r. R. R.'s anti-infilm and uf superfilms. It has developed advanced "bess purification" technologies in close contact and cooperation with leading national and overseas schools and water treatment research institutes. It has also developed multiple water purification units that meet the technical standards of "bess" ...