puoto ngongo o Dextube SS mō te whāhauhau me te waipēhi. Ko te hua i te kounga mata tiketike, me te pai tika ahu. Ko te roto me te roughness waho tae Ra 0.4um me ngāwari o te diameter roto, me te waho taea e 0.05mm.
hangaia Dextube te rite ki ASTM A269 ki te whakaaro motuhake o te tukunga ahumahi rango whāhauhau. I roto i te tikanga ki te inihua ovality tino, mutu mata me te uara ūnga mo te pakeke, kurut me te tukua kaha me te elongation, he pū matao-unu i roto i ngā wāhanga maha i te ngongo whaea. E patua ana kowiri tira ngongo puoto whāhauhau i roto i rānei rahi ngahuru emepaea ISO ranei.
