Isikhombisi sesiShandong Tonda sokuqinisekisa kakhulu lokuphindezela i-polyurethane iyishintsha leshonaleni, luhlanganiswe ukuze usebenzise ngokukhuthazelela izinto zophakamisa amagunywa, njengezindaba zokugcina, izindlela, okanye izindawo zakhemikali ezincinci. Umeshi we-polyurethane wenkunku lingapheke apithi lesiZilungile nge-tolerances esilililiwe ku-±0.05mm, ukusuka ukubonisa ukuphatha kwamagunywa amancinci usukuwe kwi-50 microns. Umehluko woshonalelo uhlela umoya omncane oluncinci lokuhlala ukuvimba izinto elingaphansi lokugcina ngokulandelana nokuhlola ukuphindezelwa kakhulu. Ikhetha yahlala kwenkulungwane ye-FDA yesiPolyurethane, uyihlobene neziqhaza zokudinga zokuthula ezindaweni zokudla nokugcinwa okanye zokugcina. Bonisa nomuntu uzoba uhlalele isibonelo somphindezelo sokuphindezela okuningiwe kahle lokungazixhasa imithombo yakho yokuphindezela.