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。
Accommodine air-condition Freon piping to end up done air-tightness and vacuum test.
房舱空调氟利昂管系密性测验和真空测验。
Ref. Freon piping to end up done air-tightness test and vacuum test.
冷藏氟利昂管系密性测验和真空测验。
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