YSH was founded in 2003, is a professional enterprise engaged in developing, designing, producing and marketing EU style coaxial flue pipes. Located in Binhai New Area, Fenghua, Ningbo, with a construction area of 35,000㎡and 180 employees, including 12 technicians and 4 R&D personnel.
The yearly production capacity of standard coaxial flue kit and extension coaxial pipe is 5,000,000 pieces. YSH's market share in China has increased dramatically and provided flue system solutions for wall-hung gas boilers.
The factory has an internal professional testing laboratory and obtained ISO9001:2015 Quality System Certification, and was awarded National High-tech Enterprise. YSH is the main drafting unit for the industry standard CJ/T199-2018 for wall-hung gas boiler flue systems.