Cov ntaub ntawv uas yog rau cov duab duab vaj teb, hlau, fiberglass, thiab lwm yam cov khoom siv no muaj cov yam ntxwv thiab muaj cov xwm txheej cuam tshuam:
Pob zeb: Pob zeb yog ib qho ntawm cov khoom qub hauv vaj duab kos, paub txog kev sib sau ua ke thiab muaj kev sib xyaw ua ke ntawm bluestic marble, thiab kev ntxhib ntawm granite, txhua hom pob zeb muaj nws tus kheej cov lus thiab kev xav ntawm lub siab.
Hlau: Nrog rau kev txhim kho ntawm kev hloov kho thiab cov khoom siv hlau, muab cov khoom siv sib txawv, muab cov khoom siv nplua nuj, muaj cov khoom siv nplua nuj, muaj zog ntawm kev tsim kho cov khoom siv kev ua rau pom kev sib txawv.. Cov hlau niaj hnub Duab puab feem ntau siv los nthuav qhia cov ntsiab lus paub daws teeb meem, ntxiv dynamism thiab kev loj hlob mus rau lub vaj chaw {}}
Fiberglass: fiberglass, kuj tseem yog siv cov fiber ntau, tab sis kuj muaj cov khoom siv hluav taws xob, tab sis kuj muaj cov duab hluav taws xob, tab sis kuj muaj cov iav, ua kom haum rau siv hauv a ntau yam ntawm ib puag ncig .
