Maitiro edu ebasa anotanga nekunzwisisa mashandisirwo emutengi, mamiriro ekugadzirisa, uye matambudziko ekugadzira. Zvichibva paruzivo urwu, tinokurudzira mhinduro dzakakodzera dzePVC stabilizer, tinopa sampuro dzekusimbisa, uye tinogadzirisa mafomura zvichienderana nemhinduro. Mushure mekusimbiswa kwechigadzirwa uye kuiswa kweodha, tinova nechokwadi chekugadzirwa kwakasimba, kudzora mhando kwakasimba, kutumirwa kwakavimbika, uye rutsigiro rwehunyanzvi runogara ruchienderera mberi, tichipa mhinduro yePVC stabilizer imwe chete ine hunhu hwepamusoro uye mashandiro asingadhuri.