Joalo ka Moetsi le Mofani oa Li-Springs, re fana ka Roll Up Door Torsion Springs ka 1.75” , 2” , 2 5/8” , 3 3/4” , 5 1/4” le 6” ka hare ka boholo ba terata e ngata ho tloha ho 0.162 ″ , 0.177″, 0.182″, 0.192″, 0.207″, 0.218″, 0.225″, 0.234″, 0.243″, 0.250″, 0.250″, 2, 3, 2,2 0.295 ″ ,0.393 ″, 0.406 ″ ho isa ho 0.437 ″ .Li-Springs kaofela li tlositsoe fekthering ho fokotsa khohlano le kutu ha li ntse li eketsa bophelo ba nako ea selemo.Khoeli e 'ngoe le e 'ngoe re ne re romella lipara tse ka bang 8000 tsa Roll Up Garage Door Springs ho ea USA, Canada, UK le Australia.