mos thiab tuab
Koj nyob hauv qhov chaw zoo rau mos thiab tuab.Txog rau tam sim no koj twb paub lawm tias, txhua yam koj tab tom nrhiav, koj paub meej tias yuav pom nws Rongda.peb lav tias nws nyob ntawm no Rongda.
Nws muaj qhov elasticity siab thiab lub zog, zoo heev hnav tsis kam thiab poob siab tsis kam, mos thiab tuab qauv, xis nyob thiab lub teeb hnav, thiab yog cov khoom siv khau zoo..
Peb taw qhia qhov zoo tshaj plaws mos thiab tuab.rau peb cov qhua ntev thiab peb yuav nquag koom tes nrog peb cov neeg siv khoom los muab cov kev daws teeb meem thiab cov txiaj ntsig tus nqi.