Qingdao Ruankong Yunyi Heavy Industry Co., Ltd.
Shandong Yunyi Heavy Industry Co., Ltd was founded in 1968. It holds U and U2 certification issued by ASME. With more than 50 years experience in manufacturing whole set of process equipment of refinery, chemical, rubber, steel, thermal power energy-saving and environmental protection, Yunyi is now a key manufacturer of refinery and chemical equipment in China.