Isikhokelo somgca siqhutywa kakhulu yibhola okanye i-roller, ngexesha elifanayo, abavelisi besikhokelo somgca jikelele baya kusebenzisa intsimbi ye-chromium okanye i-carburized bearing steel, i-PYG isebenzisa ikakhulu i-S55C, ngoko ke isikhokelo somgca sineempawu zomthamo ophezulu, ukuchaneka okuphezulu kunye ne-torque enkulu. . Xa kuthelekiswa ne-tr...
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