Ibhola ye-janda ye-chrome yensimbi ineempawu zobunzima obuphakathi, ukunyangwa kwezinto kunye ne-cocomotives, oomatshini bokuhamba, oomatshini bokuhamba, oomatshini bokuhamba, kunye nesantya esiphezulu, kunye nesantya esiphezulu sokuhambisa umthwalo. Iingqengqele kunye neefrrules. Ukongeza kwiibhola zokwenza izinto ezithwele amakhonkco, njl njl.