Tongli specializes in designing and manufacturing all kinds of HIGH QUALITY solenoid valves since its foundation in 1997 to satisfy different needs and requirements of controlling the most diverse liquids and gases in automation industry. Thanks to fast development of NGV in China after 2005, Tongli devoted key capacity production to solenoid-based components for automotive CNG system, including rail injectors, cylinder valve, regulator, and soon expanded to other products like EUC, switches, sensors, etc.....
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