Ningbo Hengli Instrument Co, Ltd. is located in Yuyao City, Zhejiang province, belonging to the Yangtze River Delta which is the economic hinterland of the east of China, Ningbo Port in east, 5 km from the world&＃039;s longest cross-sea bridge of Hangzhou Bay, 1 hour&＃039;s drive from Hangzhou and Shanghai airport, the two biggest international airport, enjoying favorable geographical position and convenient transportation. Our company is specialized in manufacturing various truck tire pressure gauge, tire pressure instrument, filling nozzle, and other gas-tools on a large scale which are exported to United States, Canada, Middle East and other parts of the world, having been considered by customers as powerful high-quality supplier. We have established a full set of quality management system which enable us to custom and develope all kinds of new products according to your requirement.