Over the years, we have made continuous progress in ship fresh-keeping, and established long-term andstable strategic cooperative relations with Jiangnan University, Jiangsu University, 701st Researchnstitute of CSIC and other institutions and scientific research institutes. Our related technical level andproduct research and development capabilities rank first in the domestic industry.At present, we havemore than 20 professional technicians in refrigeration, food, mechanical structure and electrical controland have published 51 patents, 1 software copyright and 1 monograph. In 2016, we compiled andpublished the national standard "Marine Controlled Atmosphere Fresh-keeping Storage System", withthe standard number of GB/T 33433-2016; In 2018, the enterprise standard "Controlled AtmosphereRefrigerated Container" was compiled and published, with the standard number: Q/320205BAAZ01-2018In 2020, the enterprise standard "Automatic Exhaust Constant Pressure Water Make-up Device" wascompiled and published, with the standard number of 0/320205BAAZ06-2020; In 2022, the enterprisestandard "Marine Assembled RefrigeratorDevice was compiled and published, with the standardnumber of o/320205 BAAZ01-2022.