Khoom Txheej txheem cej luam 1 Cov qauv puncture yog yooj yim rau nruab, thiab insulated hlau tsis tas yuav tev;2 Torque txiv ntseej nrog lub siab tsis tu ncua kom ntseeg tau cov hluav taws xob zoo tsis muaj kev puas tsuaj rau cov hlau, 3 Tus kheej sealing qauv, noo noo-pov thawj, tsis muaj dej, tiv thaiv corrosion, ...
Nyeem ntxiv