nghien da.+ Thep chiia 20% Cr
va 10% Ni rit ciingva khdng gi (thep inox) lam dung cu yte, dung cu gia dinh...+ Thep chiia 18% W
va 5% Cr rit ciingdugc dimg cbl tao may cit ggt
kim loai.Hogt dgng 63. San xuat thepa) Nguyin tdcGV: Tir thanh phan cua gang
va thep HS thao lua[r]