Likarolo tsa PP li matlafalitsoe ke bobebe, tse seng chefo, ho ba le ts'ebetso e ntle ebile e ka ba mouoane e lekanang le e fapaneng ea likopo tse ngata.
1. Likarolo tsa PP li sebelisoa ka lapeng litlhoko tsa letsatsi le letsatsi, lipitsa, libaesekele le litulo tse ling le li-crotes le lintho tsa ho bapala le lintho tsa ho bapala.
2. Likarolo tsa PP li sebelisoa ka lisebelisoa tsa malapa, tse ka sebelisoang ha likarolo tsa motor
3.Roled PP Likarolong tse fapaneng tsa liaparo, likopapa, li-sistimi ea maiketsetso le liqhobole tsa maiketsetso.
4. Likarolo tsa PP li sebelisoa ka likarolo tsa koloi, liphaeko tsa lik'hemik'hale, lisebelisoa tsa polokelo, li-valves tsa motlakase, li-valling li-packings tsa sekepe, jj.
5.Ke dikarolo tsa PP tse sebelisoang bakeng sa lijana tsa lipalangoang, mekotla e meholo, mekotla e lekanyang, mabokose a mabele le mabokose a 'mino le mabokose a mang.
6. Likarolo tsa PP li ka sebelisoa e le lisebelisoa tsa moaho, malumeli, meru, litlhapi le lisebelisoa tse fapaneng tse nang le lisebelisoa tse fapaneng.
7. Tsamaea ka 'mele ea PP e sebelisetsoa li-syringes tsa bongaka le lijana, li-tubes le lifilimi.
