1. Pogwiritsa ntchito PE ngati backboard, chitoliro champhamvu kwambiri cholimbana ndi chipolopolocho ndikuchepetsa kugwedezeka kodabwitsa.

2. Mu makina ophatikizana, mbale ya ceramic ndi chinthu chofunikira chomwe chimamangiriridwa ku PE backward pogwiritsa ntchito zomatira zogwira ntchito kwambiri.

3. Ndi chisindikizo cha siponji kuti chikhale cholimba, chokulungidwa ndi kutsekedwa ndi chivundikiro chosalowa madzi.