Cov khoom siv twg yog cov ntawv yas feem ntau siv rau?
Kev siv daim npav yas tau siv dav. Cov koom haum, kev txiav plaub hau thiab kev zoo nkauj, khaub ncaws, kub thiab nyiaj hniav nyiaj hniav kub, tsev so thiab lwm yam kev lag luam twb tau siv daim npav yas los tuav cov neeg siv khoom, thiab vam tias yuav nyiam cov tswv cuab tshiab los ntawm kev siv daim npav yas. Tab sis ntau tus neeg tsis paub cov ntaub ntawv twg yog siv rau daim npav yas.
Daim npav yas ua los ntawm PVC
Daim npav yas ua los ntawm PVC yog daim npav yas siv ntau tshaj plaws. Qhov kom zoo dua ntawm cov khoom siv PVC yog tias tus nqi qis, thiab rau daim npav, nws yuav ua rau tus neeg tuav daim npav xav tias daim npav yog lub teeb heev, thiab nws tuaj yeem tiv thaiv kev ya raws. Qhov tseem ceeb tshaj plaws yog qhov yooj yim ua. Tsis tas li ntawd, daim npav yas ua los ntawm PVC tseem muaj lub teeb thaiv kev ua haujlwm siab. Yog li ntawd, daim npav yas ua los ntawm PVC muaj nws tus kheej zoo.