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induction hardening tshuab
DUOLIN muaj cov tshuab ua kom ntsug lossis kab rov tav ua kom tawv tawv ntau yam ntawm cov khoom siv, xws li cov ncej, lub zog, cov menyuam, cov kav dej, cov twj tso kua mis kom haum, cov kabmob, cov tshuab khawb av, thiab lwm yam. ua kom tau txais txiaj ntsig zoo tshaj plaws.