Txij li thaum tsim, Uchampak lub hom phiaj los muab cov kev daws teeb meem zoo tshaj plaws rau peb cov neeg siv khoom. Peb tau tsim peb tus kheej R <000000>D chaw tsim khoom thiab tsim khoom. Peb nruj me ntsis ua raws li tus txheej txheem tswj kev ua tau zoo los xyuas kom meej tias peb cov khoom ua tau raws li lossis tshaj peb cov neeg siv khoom xav tau. Tsis tas li ntawd, peb muab kev pab cuam tom qab muag rau cov neeg siv khoom thoob plaws ntiaj teb. Cov neeg muas zaub uas xav paub ntau ntxiv txog peb cov khoom tshiab pov tseg ice cream khob los yog peb lub tuam txhab, tsuas yog hu rau peb.
PP: polypropylene rau feem ntau cov roj hmab, kua zaub, kua txiv hmab txiv ntoo thiab yogurt ntim, straws thiab lwm cov thawv yas nrog rau cov me nyuam lub raj mis. 6. PS: polystyrene rau cov tais zaub mov, lub thawv qe, cov khoom pov tseg thiab cov tais, nqa-onContainers thiab opaque yas tableware. 7. Lwm yam: qhov no yog catchAll pawg ntawm cov yas tsis haum rau 1-16 pawg. Nws suav nrog polyester, bio