PVA 2488 thiab PVA 1799: Cov Differences tseem ceeb thiab Cov Khoom Siv

Peb muaj kev zoo siab hais tias peb muab cov khoom polyvinyl alcohol zoo. PVA 2488 thiab PVA 1799 ob qho yog qhov siab tshaj plaws rau cov txheej txheem tswj kom tau raws li cov qauv hauv kev lag luam. Cov neeg siv khoom ntawm lwm sab yuav kuj muaj kev thaj yeeb vim cov khoom los ntawm peb tau lees paub tias yuav ua raws li lawv qhov kev cia siab txhua lub sijhawm.

Xaiv cov hom polyvinyl alcohol tsis yooj yim. Txawm li cas los xij, peb pab neeg yeej npaj txhij thaum muaj xwm txheej zoo li no vim peb yuav pab koj xaiv ntawm PVA 2488 lossis PVA 1799 raws li koj xav tau. Cov neeg siv khoom ntawm lwm sab yuav tsum kuj npaj txhij nrog lub tswv yim los muab cov ntaub ntawv kom tau txais ntau qhov pom uas yuav ua rau muaj kev paub zoo dua thaum siv peb cov khoom.