1.Cov hmoov yog ua los ntawm PET.Cov qauv tuaj yeem kho raws li cov neeg siv khoom xav tau.
2. Ntau yam organza tuaj yeem ua tiav kev sib sib zog nqus, xws li flocking, kub stamping, kub, luam ntawv, thiab lwm yam. Cov no yog cov txheej txheem ua haujlwm ntev, peb lub tuam txhab tuaj yeem muab tau.Peb txhua tus muaj cov factories uas muaj feem xyuam.