Thaum siv cov hlau easel, kev ruaj ntseg thiab qhov siab hloov tau ua tiav los ntawm kev nthuav tawm peb ceg thiab kho cov pob khawm tswj hauv qab thiab nqa pas nrig. Kho lub easel mus rau qhov siab xav tau thiab kaw nws hauv qhov chaw yog qhov tseem ceeb tshwj xeeb.
Cov nyees khawm tswj ntawm cov hlau easel, nyob rau hauv qab, yog qhov tseem ceeb rau kev tswj qhov qhib thiab kaw ntawm lub easel. Ib qho kev tso tawm maj mam tso cai rau txhua tus ntawm peb ceg kom yooj yim nthuav tawm.
Thaum peb ob txhais ceg tau nthuav dav mus rau qhov dav xav tau, tsuas yog zawm lub pob khawm tswj hauv qab kom ruaj ntseg xauv lub easel.
Kho qhov siab ntawm lub pob qhov rooj tswj ntawm lub lifting pas nrig tso cai rau kev tswj kom meej ntawm qhov qhib thiab kaw ntawm peb lub easel ob txhais ceg.
Qhov siab ntawm lub easel tuaj yeem hloov kho tau yooj yim los ntawm kev khiav haujlwm tswj crank ntawm tus pas nrig nqa.
Feem ntau, peb kho lub easel qhov siab raws li qhov dav ntawm lub canvas kom paub meej tha xim kev nplij siab thiab ruaj khov.
