Oomatshini bokuluka babizwa ngokuba ngoomatshini bokusonta, oomaleko, oomatshini bokusonta umqhaphu, njl. Iileko zokuqala zonke zaziqhutywa ngabasebenzi. Ubuchwepheshe boomatshini bokuluka bufundwe ukususela kwinkulungwane ye-19 kwaye bungeniswe kancinci kwimarike yamazwe ngamazwe ukusukela ngeminyaka yoo-1950. IYongjin ivelisa iintlobo ezintsha zoomatshini bokuluka ezikumgangatho ophezulu kwaye izibeka kwimarike emva kwenye. Iileko ezingenamashuttle zifumene iziphumo ezimangalisayo ekuphuculeni amalaphu nasekuphuculeni ukusebenza kakuhle kweeleko, kwaye zisetyenziswa kakhulu kumazwe kwihlabathi liphela, kwaye zikhawulezisa inkqubo yokuguqulwa kwezixhobo zokuluka.
UYongjin ngumvelisi kunye nababoneleli bezixhobo zoomatshini bokuluka abaphambili, unomatshini wokuluka othengiswayo, ozinikele ekuveliseni iilokhwe ezikumgangatho ophezulu, wamkelekile ukuwuthenga.