Accommodation air-condition Freon piping to be done air-tightness and vacuum test.
Accommodation air-condition Freon piping to be done air-tightness and vacuum test.
房舱空调氟利昂管系密性试验和真空试验。
Accommodation air-condition Freon piping to be done air-tightness and vacuum test.
房舱空调氟利昂管系密性试验和真空试验。