Uchungechunge lwe-APU luyipayipi lomoya le-pneumatic polyurethane elisezingeni eliphezulu elisetshenziswa kabanzi emikhakheni eyahlukene yezimboni.
Le hose ye-pneumatic polyurethane air hose inezici ezilandelayo. Okokuqala, yenziwe ngezinto ezisezingeni eliphezulu ze-polyurethane, ezinokumelana okuhle kakhulu nokugqokwa nokugqwala, futhi ingasetshenziswa isikhathi eside ezindaweni zokusebenza ezinokhahlo. Okwesibili, inokunwebeka okuhle namandla, ingakwazi ukumelana nokucindezela okuphezulu nezimo zokushisa eziphakeme, iqinisekisa ukuphepha nokuzinza komsebenzi. Ngaphezu kwalokho, i-hose ibuye ibe nokuphikiswa okuhle kwamafutha kanye nokumelana namakhemikhali, okufanelekile ezimweni ezihlukahlukene zezimboni.