Umshini wokwenza idekhi eyi-1000 odumile othengiswa emazweni amaningi, ububanzi bekhoyili ngaphambi kokuginqika bungu-1220mm/1000mm. Ngemuva kokugoqa ububanzi bomkhiqizo ngu-1000mm noma 688mm, Impahla evamile i-GI material, ukujiya kwempahla evamile phakathi kuka-0.8-1 mm.