stock code
300440
300440
028-8283 9999
九游会老哥交流区-ag九游会j9登录入口旧版
relying on yunda's products and technologies, we have established an information security system based on operation data, including data collection, online inspection, data link connection and transmission, data analysis and mining, prediction and early warning, and comprehensive security. using yunda's localized service network that radiates across the country, we have established an operation-oriented and user-friendly operation and maintenance service system. carry out maintenance and on-site guarantee services for rail transit vehicle equipment, yard section electromechanical equipment, station service electromechanical equipment, power supply equipment, provide equipment parts logistics turnover and maintenance services; joint multi-level and multi-level equipment operation and maintenance services with vehicle manufacturers, electromechanical equipment suppliers and integrators; enhance rail transit operation and maintenance level, improve operation efficiency and ensure operation safety.
200 service outlets 24-hour sincere guardianship
yunda technology official account
yunda technology service official account
028-8283 9999（contact number）
028-8283 9998（quality complaints）
028-8289 1080（24-hour service hotline）