Ejiri ya dị ka onye na-emepe emepe maka akpa nkwakọ ngwaahịa polyethylene na polypropylene dị na nri, uwe, na ụlọ ọrụ ndị ọzọ, yana onye na-eme mmanu na ntọhapụ maka ngwaahịa rọba dị iche iche na stabilizer maka mmepụta PP.
Eji maka njikọ nke ihe ndị na-ese foto
Na-ewebata ogwe aka nwere mmetụta acid n'ime poly (p-phenylene oxide),
Dị ka onye na-ebu akwụkwọ akụkọ, ọ nwere ọtụtụ ngwa ngwa na njikọ peptide siri ike.
