... other machining equipment, such as 5.3m vertical lathe, T160 floor type boring machine, 10m depth drill, 6m cantilever plane, ... surface hardening, we have 250KW, 160Kw intermediate frequency equipment, and 100Kw high frequency equipment, which can processthe surface hardening ... roll, rolling mill roll. etcRing parts: the hardening and tempering, surface quenching for all kinds of bearing roller ...