Shaanxi Creat Wit Technology Co. Ltd. (CW) is high-tech enterprise in Shaanxi province, China, which was restructured from Xi'an Thermal Pressure Instrument Factory in July, 2006. It is mainly engaged in developing, manufacturing and selling the thermal industries calibration equipment, such as dead weight tester, temperature measurement and other calibration instruments. "Creat Wit" is a well-known brand in the field of pressure and temperature measurement and calibration in China. It is the first manufacturing enterprise in this field to be certified by the new version ISO9000/2008. We participated in drafting many national standards such as ‘’liquid piston pressure gauge”, “gas piston pressure gauge’’ and so on. Our services are as following: 1. Supply various thermal instruments: measuring tools, analytical instruments, laboratory equipment, etc., also provide consulting and customized services. 2. Supply authoritative national, provincial verification and calibration