Sino-foreign joint venture Shanghai Joysun Machinery & Electric Equipment Manufacture Co., Ltd is located in Zhangjiang High-tech East Area, Shanghai and belongs to the Shanghai high and new technology enterprise. Our company has the factory which covers an area of more than 10, 000m2 and the R&D engineers and technicians more than 30. We apply the German advanced technology in single-stage sliding vane rotary vacuum pump and CAD/CAM manufacture technology and ensure the quality and performance of the products. And now, we win favorable feedback from various overseas customers, such as Spain, Netherlands, Sweden, United Kingdom, Italy, USA, Canada, Australia, Poland, India, Iran, etc, due to reliable quality and perfect service.