Sankhani 42Crmo ndi 40CrNiMo aloyi zipangizo.Forging, Machining, kutentha mankhwala, kuwomberedwa kuphulika ndi processing zina kusintha Abrasion kukana ndi kukana zimakhudza katundu, ndi kuonjezera moyo utumiki wawo.
Tili ndi gulu logwira ntchito bwino la nkhungu kupanga nkhungu za mapini apadera, kuti tichitepo kanthu pokonzanso mano atsopano.Ndiye katundu wakuthupi ndi wamakina amatha kukwaniritsa ntchito zambiri, mano osiyanasiyana amafanana.Landirani moona mtima cholinga chanu ndi mgwirizano.