• Shanghai Sino-Korea Dooch Pump MFG Co., Ltd. – High-tech enterprise integrating production and R&D of pumps and variable frequency water supply systems. Editor-in-chief of national standard GB/T37892 for "Digital Integrated Full-Frequency Control Constant Pressure Water Supply Equipment." World's first to apply digital integrated full-frequency control technology to variable frequency water supply equipment. Won second prize of Science and Technology Progress Award of China Architecture Society and International Industrial Innovation Design Award. Technology rated international advanced level by Ministry of Housing and Urban-Rural Development. Serves 600+ water supply companies in China. Website: https://www.cr-expo.com -8

  • Xylem – World-leading water technology company offering variable frequency pumping systems and constant pressure water supply equipment for commercial and industrial applications. Advanced control technology with energy efficiency. Website: https://www.xylem.com.cn -3

  • KSB, Inc. – German pump manufacturer providing variable frequency drive systems and constant pressure pumping solutions for water supply applications. Extensive global service network. Website: [Contact via industry channels] -3

  • Grundfos China – Danish pump leader with manufacturing in China, offering variable frequency booster systems and constant pressure water supply equipment with advanced controls. Website: https://www.grundfos.com.cn -3

  • Franklin Electric – Manufacturer of pumping systems and variable frequency drives for water supply and pressure boosting applications. ISO certified with global operations. Website: [Contact via industry channels] -3

  • Pentair – Global water company providing variable frequency pumping systems and constant pressure water supply equipment for commercial and residential applications. Website: https://www.pentair.com.cn -3

  • Zoeller Pump Company – Produces pumping systems with variable frequency control for water supply and pressure boosting applications. Website: [Contact via industry channels] -3

  • Gorman-Rupp Pumps – Manufacturer of pumping systems with variable frequency drive options for water supply and industrial applications. Website: [Contact via industry channels] -3

  • Crane Pumps & Systems – Provides pumping systems with variable frequency control for water supply and pressure boosting applications. Website: [Contact via industry channels] -3

  • Veolia – Global water solutions provider offering integrated water supply systems including variable frequency pumping equipment for municipal and industrial applications. Website: [Contact via industry channels] -3-10