欧美老妇交乱视频_日本疯狂爆乳xxxx_国久久久久久_国产精品羞羞答答_小老弟av影院_亚洲久草网

  Xi'an QinKai Biotech Co., Ltd. was founded in 2005. For past years, we have always focused on R&D, production and sales of active pharmaceutical ingredients (APIs) and pharmaceutical intermediates. Our company is located in Enterprise Accelerator of Xi'an Hi-Tech Industries Development Zone, Caotang, Huyi District, Xi'an City, where we have established a 2200 square metres of base for R&D and office. Furthermore, we have more than 700 square metres of laboratories for production. Our synthesis laboratories are equipped with a variety of R&D equipments and analysis laboratories are equipped with chromatograph, preparative chromatograph and other basic test equipments. Good cooperative relationships with local universities provide us access to their large equipments, such as nuclear magnetic resonance spectrometer, X-ray diffraction instrument, etc. With well operation, our R&D level is improving and our production capacity is expanding year by year.
  We could provide more than 100 products which fall into six main categories. The most important products are vitamin D derivatives, including APIs, intermediates and impurities. These vitamin D derivatives are Eldecalcitol, Calcipotriol, Calcitriol, Paricalcitol, Maxacalcitol, Calcifediol, Doxercalciferol and Alfacalcidol. Through many years of R&D and production about this series of products, we have accumulated abundant practical experiences, which give us superior advantages of technology and production.
  Xi'an QinKai Biotech Co., Ltd. wish to establish long-term cooperative relations with customers all over the world. We insist on the principle of “Quality First, Customers Supreme” and will wholeheartedly provide the best products and the related technical services to all of our customers.