... 40,C61200X10/32,C61200X10/50 heavy duty horizontal lathe, together with the other machining equipment, such as5.3m vertical lathe, ... and the normalizing, hardening and tempering of half girth gear within 10m diameter.With regards of the surface hardening, we have250KW, 160Kw ... :shaft: the hardening and tempering, surface quenching for all kinds of shaft no longer than 16m, large size surpporting roll, ...