Hydrostatic testing, tseem hu ua hydro testing, yog cov txheej txheem ntawm kev sim roj thooj voos kheej kheej rau lub zog thiab xau. Qhov kev sim no yog ua tiav ntawm ntau hom thooj voos kheej kheej xws li oxygen, argon, nitrogen, hydrogen, carbon dioxide, calibration gases, roj sib tov, thiab seamless los yog welded ...
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