Is a comprehensive company integrating cold storage product design, product development, product manufacturing, complete sets of projects, after-sales service and technical consultation. Mainly engaged in the installation and maintenance of Qingdao cold storage project, Qingdao small cold storage installation and maintenance, Qingdao large cold storage installation and maintenance, Qingdao assembled cold storage installation and maintenance, Qingdao combined cold storage installation and maintenance, Qingdao explosion-proof cold storage installation and maintenance, Qingdao ultra-low temperature cold storage installation and maintenance, Qingdao combined plate cold storage installation and maintenance, Qingdao civil library cold storage installation and maintenance, Qingdao modified atmosphere cold storage installation and maintenance, Qingdao meat food cold storage installation and maintenance, Qingdao vegetable cold storage installation and maintenance, beverage cold storage installation and maintenance, Qingdao medical cold storage installation and maintenance, various uses of quick-frozen refrigeration engineering installation and maintenance, Qingdao industrial cold water refrigeration unit design and installation and maintenance. Qingdao commercial freezer installation and maintenance, Qingdao commercial central air conditioning installation and maintenance, Qingdao large refrigeration equipment installation and maintenance.