Isiphiwo se-Shandong Tongda sesepheri sesi-polyurethane esiseleyo sihlola amaxwebhu okukhangelwa kakhulu ezidinga amandla kubhedlela emanzini. Isibheke, ngenxa yoshumi lwamahashi wokuqala 90–95A, usetyenziswa ngokulandelana ngesiphumo sokuqinisekisa lesi-polyurethane esifanayo namabili omkhulu olungaphakathi, ukuze libe luhlu lusenziwe ukufika kwesikhwama sokushintsha nokuba kunemihlobo yokushintswa. Ukusebenza kumoya ofanele kuyahlala ngendawo yakho ngokupheleleni, uyahlukile ukuthi uhlobene nezinto ezingasiza njengemaduda engaqondweni, asfalti noma amadheshivu wezindaba zokusebenza. Umgca wesikhombiso wahlukile ukuthi akwazi ukubhujabha, uyingxenye lokuhlola kanye nokuthola imali ngokupheleleni kwiimbhuzi yezindaba zokusebenza kuhlanganisela umculo, ukubhedlela, nokusebenzela izindlela ezincinci. Lalela mithetho abafundeki ukuthi uzame ukuthola i-shore specifications noma amagama angaphezu kwezindaba ezinomsindo.