Tsarin rufin rufin ya fi kawai shimfidar wuri da aka rufe a cikin membrane.Masu nema sun sami kansu suna buƙatar yin aiki a kusa da sasanninta, bututu, da sauran abubuwan shiga.Wannan shine inda na'urorin haɗi na Trump Eco da aka riga aka kera, na'urorin rufewa da na'urorin haɗi suka shigo cikin wasa - don
sanya tsarin shigarwa na rufin kamar yadda ya kamata.
Mun kuma haɓaka jerin samfuran tallafi: tef ɗin kabu, tef ɗin murfi, tef ɗin faci da walƙiya don samar da cikakken tsarin kandami na EPDM.