I-WJW commercial sliding door iyisibuyekezo se-Commercial Sliding Door enezingxenye ezintsha ze-sill yakho kokubili i-Double and Triple Track kanye nenani lezinketho ze-sash ezintsha ezivumela ingilazi eqinile, ukucwebezela okuphindwe kabili kanye nenketho yokucwenga kwesayithi.
Izinguquko ezinkulu zihlanganisa izingxenye ezintsha ze-sill ezine-drop in tracks ezingashintshwa kalula uma zilimele noma zigugile futhi umklamo wazo oyingqayizivele umboza izikhala zokudonsa amanzi ezingabonakali kuma-sills ngenzuzo eyengeziwe yokwandisa ukusebenza kwamanzi. Zonke izisele ezingenalutho ezikhona ziyaqhubeka nokutholakala ukuze zisetshenziswe lapho i-sub sill ingasetshenziswa.
Ama-Gutter Sill kuzo zombili izinhlobo zamathrekhi aphindwe kabili kanye nakathathu manje ayatholakala ukuze afakwe ezinsikeni ezishaywayo futhi lezi zifaka i-aluminium, noma i-grate yensimbi engagqwali ukukhipha amanzi angaphezulu.