Ton akpa bụ akpa ụlọ ọrụ nke nnukwu polyethylene kpara akpa ma ọ bụ polypropylene emebere maka ịchekwa na ibu ngwaahịa akọrọ, nke nwere ike ịgba, dị ka ájá, fatịlaịza, na granules nke rọba.