Shanghai EVP Vacuum Technology Co., Ltd. is a group company with about 100 million USD turn over per year. we have engaged in vacuum industry since 1998 till now is already 20 years. Our main products are liquid ring vacuum pump, roots vacuum pump, roots blower and rotary piston vacuum pumps, vacuum systems etc.Besides the vacuum products manufacturing, we also design vacuum systems for our customer. we are dedicated to building our great brand image -- EVP.EVP is committed to offering customer-made vacuum solutions, including consulting, planning, designing, building, operating, installing and debugging. We have professional engineering teams according to the different customers. Our products have long operation life, stable and reliable quality, high vacuum standards, duly shipment and completed sizes to meet requirements of different customers from different markets, such as the USA, Canada, India, Brazil, Russia, Italy, Norway, etc.Our products are designed by the experienced technicians with more than 20 years, through 100% factory inspection. Our inspection standard is about 2 times higher than national pump standard. We are responsible for any problem of the product quality and provide the tracking service of shipment. The feedback in 12 hours with the customers' opinions will be tackled within 24 hours.