Shanghai Diwei Vacuum Equipment Co., Ltd. is located in Qingpu, the birthplace of China's first vacuum pump. It is composed of a group of people who have been engaged in the vacuum industry for decades, with strong technical force and strong forward-looking. The main products are DVB series roots vacuum pumps, DVL liquid ring vacuum pumps, and DVS screw vacuum pumps. The DVB series of new roots vacuum pumps independently developed and produced by the company use the most modern production technology, machinery and equipment manufacturing to make up for the traditional roots vacuum pumps. There are many shortcomings, with a novel and exquisite appearance, a unique sealing method, facing the market. The company's vacuum products are widely used in aviation, aerospace, energy, military, electronics, chemical, metallurgy, textile, food, medicine, environmental protection and other high-tech fields. The leading technology and high-quality service have won wide praise from customers.