Ukumelana nokutyibilika kwentambo kwilaphu elilukiweyo kwalinganiswa ngokungqubana phakathi kwerola kunye nelaphu.
GB/T 13772.4-2008
1. Isixhobo sokudlulisa silawulwa yinjini yokunyathela ngokuchanekileyo.
2. Umboniso wesikrini sokuchukumisa umbala, ulawulo, ujongano lwesiTshayina nesiNgesi, imo yokusebenza yemenyu
1. Isampulu yekliphu: ubude be-190mm, ububanzi be-160mm (ubungakanani bokubambelela obusebenzayo yi-100mm × 150mm)
2. Ubude bebhokisi yi-500mm, ububanzi yi-360mm, ukuphakama yi-160mm
3. Isantya sokuhamba: amaxesha angama-30 ngomzuzu
4. Ukubetha okuhambayo: 25mm
5. Isibini se-roller yerabha ububanzi obuyi-20mm, ubude obuyi-25mm kunye no-50mm ngokulandelelana, ubunzima be-Shore obuyi-55° -60°