Kev phom sij ntawm kev tso pa roj carbon dioxide uas tsis muaj roj thiab lubricated nrog dej

Kev kawm tus kheej, pib thiab nres ntse

Tshawb xyuas qhov kub thiab txias ntawm ib puag ncig kom tiv thaiv kev kub ntxhov siab uas tshwm sim los ntawm qhov kub thiab txias ntau dhau;

Tshawb xyuas qhov kawg ntawm cov khoom siv tom qab ua tiav kom tiv thaiv tau qhov sib txawv ntawm cov cua compressed kom tsis txhob siab dhau thiab nkim hluav taws xob;