日韩av女人天堂_日韩国产欧美在线一区_91精品少妇裸体毛片A片小倩_亚洲色偷偷偷鲁_国产免费av观看一二三区_两个女人裸体互吻互摸_好色视频APP下载_日韩大胆美女私人网站_曰批全免费视频观看_国产一级片内射亚洲

Weihai Berlin Voncon Oxygen Technology Co., Ltd was established in March 2012, located at No. 212, Keji Road, Weihai High-tech Industrial Development Zone. The registered capital is USD 7 millions.The company is established on the basis of technical cooperation with the University of Berlin, established to focus on China‘s medical air sterilizer products, medical molecular sieve oxygen generator and hospital center oxygen supply system. It is a national scientific and technological small and medium-sized enterprise and a provincial high-tech enterprise integrating R&D, manufacturing, sales, maintenance and service.