Tshuaj ntxuav tes hom tsuag

Tshuaj ntxuav tes hom tsuag

Muaj peev xwm muab cov tshuaj pleev ib ce zoo tshaj plaws ntawm daim tawv nqaij tsis tshua muaj khaus, tsis hnov ??tsw me me, kev nyab xeeb siab rau ntawm daim tawv nqaij thiab daim tawv muag Muaj ntau yam kev sib raug zoo Kev ncua kev ruaj ntseg Siab adhesion ceev, pom tseeb thickening nyhuv, zoo heev cov nqi kev ua tau zoo.