Annealed dub hlau yog ib hom mos annealed dub hlau ua los ntawm cov hlau tsis tshua muaj hlau los ntawm kev kos duab txias, cua sov, qhov kub thiab txias.Annealed dub hlau yog tsim los ntawm hlau, cobalt, npib tsib xee, tooj liab, carbon, zinc, thiab lwm yam khoom.Kub hlau billet yog dov rau hauv 6.5mm thi...
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