Tianjin Yunkai Resin Technology Co.. Ltd (here in after "YUNKAI") is a high and new technology enterprise. YUNKAI has been working on the research, development and manufacture of resin for several years,is one of the earliest manufacturers in China.We have a group of excellent specialists and technicians. YUNKAI has set up bio-separation lab with some universities of China．There are advanced production method, good management system, high automatic level and complete QA system insides YUNKAI. ...