YS ntau yam roj injectors ntawm CAT hom xa cov kev ua tau zoo tshaj plaws thiab lub neej ntev dua, Ntxiv rau, lawv ua kom cov roj ua kom zoo dua qub thiab tseem ua kom cov pa tawm raws.
Peb cov neeg muas zaub ntseeg qhov zoo ntawm YS injector, YS injector txheej tiv thaiv cov tshuaj tiv thaiv los ntawm kev hnav ntau dhau thiab qias neeg, yog li peb cov injectors xa mus txog 3X ntau hnav lub neej. Lub neej ntev injector txhais tau hais tias kev ua haujlwm qis ntawm cov neeg siv khoom.