Hluav taws kub tsis kam
Koj nyob hauv qhov chaw zoo rau Hluav taws kub tsis kam.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.
Cov txheej txheem tsim khoom ntawm Rongda suav nrog kev coagulation, ib qho txheej txheem uas ua rau cov polyisoprene curdles lossis thickens mus rau hauv ib pawg. Cov txheej txheem no yog ua tiav los ntawm kev ntxiv ib qho kua qaub..
Peb taw qhia qhov zoo tshaj plaws Hluav taws kub tsis kam.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.