??????? Total of more than 900 professional staff, including138 engineering and technical personnel, more than 800 skilled workers, 42 specialists, can inspect all kinds of equipment like centrifugal , reciprocating , screw compressors, steam turbines, all kinds of vane pumps, displacement pumps, fans and adjust Siemens , Mitsubishi , Burckhardt hyper compressor, Sulzer and others. In recent years, the company has undertaken all the production of Qilu Petrochemical plant, Yantai Wanhua Co., Ltd., Sinopec Qingdao Refining and Chemical Company, Zhongtian Hopchuang Company, Qingdao LNG, Shandong Koru and others.