Muaj ntau ntau hom kev hnav-tiv taus qhov chaw uas tuaj yeem siv rau hauv cov tshuab. Qee yam hnav xws li nozzles, valve, rooj zaum, bushings, txiav cov cuab yeej, pins, shafts, plungers, tes tsho thiab roj thiab roj hnav cov khoom thiab cov khoom..
Nyeem ntxiv...