Kev taw qhia thiab kev sib khi ua haujlwm tau ua tiav los ntawm cov ntsaws ruaj ruaj lawv tus kheej hauv qhov chaw me me.
Haum rau siv hauv cov roj ntxhia HFA, HFB thiab HFC hluav taws kub resistant hydraulic roj (qhov kub siab tshaj 60 ℃).
Cov ntsaws ruaj ruaj yog ib qho yooj yim rau nruab
Kev tsim kho piston yooj yim.
Qhov tshwj xeeb geometry ntawm NBR foob caij tso cai rau kev teeb tsa yam tsis muaj kev cuam tshuam hauv qhov zawj.