Npog kab xev yuav muab faib ua huab cua sib txawv raws li qhov sib txawv ntawm cov xim; kub cev, kub kub, thiab kub. Raws li cov viscosity, nws yuav muab faib ua; tsawg viscosity, medium viscosity, thiab siab viscosity.
Npog kab xev yuav muab faib ua huab cua sib txawv raws li qhov sib txawv ntawm cov xim; kub cev, kub kub, thiab kub. Raws li cov viscosity, nws yuav muab faib ua; tsawg viscosity, medium viscosity, thiab siab viscosity.
Tom ntej
Hluavtaws Xob:Xa kev nug
