Khoom siv
Qhov no 50 * 20mm duab plaub yeeb nkab ntsaws yog ua los ntawm cov khoom zoo PP.Lwm cov ntaub ntawv thiab xim kuj muaj, raws li cov neeg siv khoom xav tau.
Ib qho yooj yim installation
Rau kev yooj yim installation, txhua lub raj ntxig tuaj nrog tav, tsuas yog yuav tsum tau ntim nrog lub raj ua ntej tapping rau hauv txoj hauj lwm.Ribs muab kev ruaj ntseg haum thiab tiv thaiv kev xav tau ntawm cov nplaum ntxiv.