Isigaba esikhulu sokuphucuma kweShandong Tonda, esebenzisa umsebenzi wokuqala wesigaba sompoliyourethane, usetyenziswa ukuthiwe amanani engaphambili kumncedisi yemali, njengamakhwenkhwini okanye izindawo zokuphucula amadwale. Ukuseta sigaba sikwazi ukusetshentela ngendawo yokugcina emahhene (aphandle kwesihlanu) kunye nokuhlola ngokubonakalisi okukhethwe ngokupheleleyo (uhlu lwemfobo olunempumelelo ≤150 mg, isibhedlela ≥40 MPa) phakathi kwezindawo ezikhulu. Isigaba sisetjentelwa ngezilayini zokulayisha ngokupheleleyo, ezifinyelelwa ngokungabiko lokusebenza lokuhlola umsane (1–50 mm) kunye nokushintsha okufakelwayo (30–70%), uzokusukela ukuseta kakhulu kunye nokusasaza okukhulu. Ikhathazo leyo lasetshentelwa ngokubona kakhulu lokusetshentela kwiindlela ezikhulu zokusasaza, uzokususa imisebenzi yokusethelayo ngokuphiyeyo kakhulu. Phikisana nethu ukuze uhlobo lokusebenzela kunye nokuthuthukiswa kwezicwangciso eziphumayo kwiseva lakho lokungapheli.