Ua rau: Kev sib raug zoo tsis zoo tshwm sim thaum ob lub npoo ntawm cov yeeb nkab billet sib tshooj sib tshooj, uas tshwm sim los ntawm cov yam ntxwv xws li axial txav ntawm qhov nyem yob, cov kabmob puas, khoov nyem yob axles, lossis siab extrusion ntau dhau.
Kev daws: Tshawb xyuas thiab kho qhov chaw thiab qhov xwm txheej ntawm cov yob yob, hloov cov kabmob uas puas lawm, xaiv cov qauv qhov tsim nyog thiab yob qhov sib txawv, thiab kho tus nqi extrusion.
