Shenyang Ziweiheng Testing Equipment Co., Ltd. (abbreviation: ZWH or Ziwei Test), headquartered in Shenyang City, Liaoning Province. It is an international brand of pressure/flow/temperature/durability test equipment manufacturer and solution provider. It is also a comprehensive third-party organization integrating testing, calibration, inspection and technical services, provides one-stop solutions for enterprises across the country. After more than 20 years of vigorous development, it has become the most influential and dynamic new technology high-tech enterprise in the northeast of China. Since its inception of ZWH, its business has expanded to automotive/aeronautics & astronautics/rail transit/ship heavy industry/construction/nuclear industry/metallurgical machinery and many other fields. The output value has exceeded 100 million yuan for six consecutive years. The company has 256 employees. 72 Research and Development personnel, 28% of the total number of employees, the proportion of scientific and technical personnel is reasonable, the staff structure is reasonable, more than 90% of the company's technical centers are technicians with bachelor's degree or above. The company covers an area of 33 acres, with a construction area of 13,500 square meters and a factory building area of 10,500 square meters.