Li cas los xaiv cov khoom ntawm cov saw hlau

Kev xaiv ntawm kev ua tau zoo tsis tsawg dua 45 steel khoom tsim yog zoo tagnrho, yog li ntawd nws txoj saw muaj lub zog kub, tawv thiab hnav tsis kam. Feem ntau cov ntaub ntawv saw hauv cov khoom xaiv ntawm 45mn2 Temper Kev Kho Mob, Hardness HRC62, tsis ntev los no nws muaj cov khoom siv zoo, siv sijhawm ntev. Tus pin yog ua los ntawm 45 cov hlau lossis 40cr kev kev kho mob, thiab nws quenching hardness yog hrc 38-43.