Njira yopangira zinthu nthawi zambiri imakhala ndi izi: kusankha kwapamwamba kwambiri kwa billet blanking, kutentha, kupanga ndi kuzizira kozizira. Njira zopangira ziphaso zimaphatikizapo kupangira kwaulere, kupanga fakitale komanso kupanga mafilimu opyapyala. Pakupanga, njira zosiyanasiyana zopangira zimasankhidwa malinga ndi mtundu ...
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