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 nsf, wqa and sgs. Localizing technological innovation using globally imported raw materials and precision models. Keffield constructs six product matrices that cover the whole landscape's water-purification needs: front-filtration series: protection of the first line of defence of the domestic water system; central net-soft series: optimization of the water quality of the whole house; commercial engineering series: meeting water security in enterprises and public facilities; air cleaners: extension of healthy living ecological chains; water purification package products: improvement of equipment synergy. Products are marketed in dozens of countries around the world, with the cumulative establishment of over 6,000 service points, making them the preferred water purification option for high-end residential and commercial projects in china. With the concept of "grateful, honest, innovative, win-win" in its business, keffield focuses on home-wide water purification technology development and fine-tuning services to enhance user experience through continuous technological innovation. With more than 90 years of technology accumulation and localization strategies, china continues to lead the technological upgrading of its water purification sector to provide consumers with healthy and safe drinking water solutions。