Double Stage Rotary Vane Series Vacuum Pump

Zhejiang yonjou Technology Co., Ltd. is a research and development, production, sales in the valve products supporting the production of complete sets of equipment, sales, investment and financial institutions modernized enterprise diversification.
Permanent ball brand was founded in 1989, is a region of southern Zhejiang earliest established brand valve, Wenzhou well-known trademark, famous trademark of Yongjia county. 2008 new start new orange smile trademark, pursuing new vitality to smile, to service for the foundation, and strive to be the permanent ball into the valve industry in national brand globalization.
Adhering to the "bigger and stronger" spirit, the company has passed the ISO9001 international quality system, the detection of the EU CE certification, SGS, BV, TUV certification, UTS product field, and has a number of national patents, products by PICC underwriting quality, the company continuously over the years has been rated as "ICBC AAA credit enterprise", Zhejiang province "Shou contract re credit units", "Zhejiang Province integrity of private enterprises", "science and technology enterprises in Zhejiang province", "Zhejiang Province valve industry quality brand", "Wenzhou famous trademark", "Yongjia county famous trademark", "Yongjia star enterprise", "Yongjia science and technology project implementation unit" etc.. Products are exported to Germany, American permanent ball, Britain, Russia, South Korea, Japan, Australia, Brazil, Indonesia, Singapore, Romania, the United Arab Emirates, Iran, Egypt and other 180 countries and regions. To provide products and services for CNPC, SINOPEC, ABB, SIEMENS, ARITA, GRUNDFOS, KSB, HANIL, JC, KENT, WVODESIGNS, MAIN, ITT and other Multi-National Corporation, and many times the ball directly to the permanent brand to enter the bidding project and the government procurement list.