Mhando yakadai yehelical yemukati giya inowanzoda kugadziridzwa chimiro uye iko kurongeka kuri ISO6-7, pamberi pekutumira kwese, isu tinopa pazasi aya mishumo kumutengi kuti atarise iyo helical ring giya ruzivo kuti ave nechokwadi chekuti zvese zvinonzwisisika uye zvakanaka kutumira.
1) Bubble kudhirowa
2)Dimension report
3)Hidya kurapwa report before heat treatment
4)Hidya mushumo wekurapa mushure mekupisa kupisa
5)Material report
6)Arondedzero yechokwadi
7)Pmapikicha uye ese ekuyedza mavhidhiyo senge runout, Cylindricity nezvimwe
8) Mimwe mishumo yekuyedza pane zvinodiwa nevatengi senge chikanganiso chekuona chirevo