[Pressure gauge, Thermometer, Steel ball - CHUEN CHARNG CO LTD More than 30 years experienced Taiwan manufacturer and supplier of pressure gauges, thermometers and steel balls. We offer general purpose, liquid(glycerin or silicone) filled, stainless steel pressure gauges and other special manometers to meet variety of applications. We also supply different types of bimetal thermometers and glass thermometers which is compactly designed, ruggedly constructed and excellent readability.]