I-ISO-K i-half-short-short tube luhlobo lokufakwa kwevalve eyenzelwe ukudibanisa imibhobho ngokufanelekileyo.Ngomgangatho wayo okhethekileyo kunye nokuqina, le mveliso iye yaba lukhetho oludumileyo phakathi kwabathengi baseAsia, kuMntla Merika naseYurophu.Le ityhubhu yenzelwe ngokukodwa ukunciphisa ilahleko yendawo kwindawo yombhobho, okwenza kube yinto efanelekileyo kulabo bafuna isisombululo esinokwethenjelwa nesisebenzayo.