Yuyao Hengwei Instrument and Meter Co.,Ltd , is located in Yuyao City , Zhejiang Province , which has wonderful environment and convenient transfer next to the Liangzhou Road in Yangming Instrument Zones. Its geographical location is richly endowed by nature . It's an enterprise which produces and runs all kinds of metal manoneters . Its ability of production is more than three million manometers . The company has rich skill strength and advanced production , test equipments . Its goods produced according to the strict series of quality and management principle , are sole to the countries all over the world.