Hoʻohana ʻo SS no nā pine a me nā loulou i waho, a me ka plastic engineering kūikawā (matte white, POM a i ʻole PA6) no nā loulou i loko, no ka pale ʻana i ka corrosion ʻoi aku ka maikaʻi ma mua o ka moʻo maʻamau. Eia nō naʻe, e aʻo ʻia i ke koho ʻana i ka haʻahaʻa i ʻae ʻia ʻo 60% ka nui o ke kaulahao moʻo maʻamau.