Sida wax soo saarka xiddiga muddada-dheer ee warshadaha kasterka,poliurethane (PU) giraangiraha rarkahad iyo jeer waxa uu suuqu u door biday in ay xamili karaan culaysyo culus iyo faa'iidooyin badan.

Farsamo ka soo alaabta ceeriin tayo sare leh oo ka mid ah noocyada caalamiga ah, giraangiraha ma aha oo kaliya loogu talagalay in lagu qaado miisaanka culus, laakiin sidoo kale waxay leeyihiin sifooyinka ilaalinta dabaqa, tuman aan xuduud lahayn, rogid aamusan iyo fuushan siman.Taayirrada polyurethane (PU).waa kuwa u adkaysta xidhashada, jeexjeexa u adkaysta oo saamayntooda u adkaysta, oo ma fududa in la habeeyo ama la simopoliurethane (PU) wheelssi aad ah u yareeya buuqa shaqada, taas oo isbedel aamusan ku keenaysa deegaanka shaqada.

Polyurethane(PU) taayirrada xambaarasi weyn ayaa looga isticmaalaa meelaha muhiimka ah sidafargeeto, nidaamyada maaraynta baabuurta la hago (AGV), bakhaar saddex-cabbir ah oo caqli leh, mashiinnada dhismaha, tas-hiilaadka madadaalada iyo soo saarista baabuurta.Waxay bixiyaan dammaanad hawlgal xoog leh oo loogu talagalay qalabka mobilada warshadaha, waxayna noqdaan tusaale ka mid ah casters caalamiga ah ee warshadaha mishiinada.