CHENYI established and headquartered in Ningbo since 2008, is a well-known supplier/manufacture of low-pressure high-precision solenoid valves and air pumps in the China market. Our company has independent research and development, design and production capabilities and is a national high-tech enterprise. We passed ISO9001 certification in 2009. At the same time, we have 32 utility patents and 2 invention patents.CHENYI is specialized in producing solenoid valves and air pumps, which are widely used in the fitness equipment, medical machinery, beauty equipment, coffee machines, household steam machines and household oxygen concentrator. Our company's annual output exceeds 3.6 million sets of solenoid valves and more than 600,000 air pumps. We have 106 various CNC precision automatic lathe, 16 automated assembly equipment, 2 sets of winding equipment, 9 sets of assembly lines, and more than 10 sets of testing equipment. The quantity and quality of production equipment have reached the advanced level in China.