Oda focuses on providing maintenance, debugging, upkeep, overhaul, and upgrading services for our salt chemical, coal chemical, and petrochemical plants, including refrigeration compressors, process gas compressors, screw compressors, rotary compressors, centrifugal compressors, turbine compressors, propane compressors, BOG compressors, ethylene compressors, propylene compressors, liquefied natural gas (LNG)/liquefied petroleum natural gas (LPG) compressors, and vibration detection and analysis of compressor operation status; Dynamic balance test of rotor and impeller, intelligent repair and remanufacturing; Intelligent repair and pressure testing of compressor casing, maintenance of refrigerant circulation system and oil circulation system of refrigeration system, and supply of accessories.