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。

youdao

Accommodation air-condition freon piping to be done air-tightness test.

房舱空调氟利昂管系密性试验。

youdao

Accommodation air-condition freon piping to be done air-tightness test.

房舱空调氟利昂管系密性试验。

youdao