Hangzhou Shilin Automation Engineering Co., Ltd., founded in 1995 with a registered capital of 5.5 million yuan, is a high-tech industrial company integrating scientific research, production and operation. Located in room 402, block a, No. 4 Jingyuan Road, Gongshu District, Hangzhou, it has a scientific research team mainly composed of doctors and masters. Since its establishment, with the purpose of "serving the society with high and new technology" and the service concept of "surviving with quality and developing with reputation", the company is dedicated to the development and research of high starting point and high-tech automatic instruments and automatic control technology. It is an ISO9001 international quality system certification enterprise. The apsl pressure verification system independently developed by the company has 15 independent intellectual property rights, providing strong technical support and after-sales service guarantee for products leaving the factory. At present, the company's product sales fields include aviation, aerospace, electric power, petroleum, chemical industry, metallurgy, metrology, machinery manufacturing and other industries.