Ib qho polyvinyl alcohol nrog cov yam ntxwv coating muaj zog yog PVA 1788. Tab sis dab tsi tiag tiag ua rau nws txawv? Ntawm nws ntau yam zoo, muaj kev nplij siab, tsim cov yeeb yaj kiab zoo, thiab muaj kev ywj pheej. Nrog peb cov kev sib raug zoo thiab muaj ntau hom xim, kuv tuaj yeem hais tias peb yuav tsim thiab muab PVA tsim nyog los npog cov requirments ntawm peb cov neeg muas zaub thoob ntiaj teb. Kuv yuav zoo siab pab koj xaiv cov khoom PVA zoo rau koj cov ntawv thov coating tshwj xeeb.