Kaofl's high-end international water purification brand, which entered china in 2015, established the dell industries (shenzhen) ltd., which is responsible for r & d, production and marketing operations in the asia-pacific region, synchronized the construction of integrated office buildings, research and development bases and modern production workshops, and formed an industry-wide chain layout that integrates r & d, production, marketing and services. Based on the deposition of advanced industrial technologies in the united states, keffield combines core water purification technologies such as ro's reverse osmosis, superfilms and activated carbon with china's water quality characteristics and autonomously designs product lines suitable for the chinese market. (c) the possession of water-purification patents for several inventions in the field of water purification, with the production line of automated water purification equipment and international authorities such as the n...