... of gears, worm gears3, Standard and non-standard4, Material C45, 40Cr. 42CrMo. GG25,GGG40,GGG45, S. ... vehicle transmissions, auto parts, construction equipment, machine tools, conveyors, material handling, multi-spindle drives, roller feeds etc.2 ... treatment, black of oxidation, zincing9) Machine: CNC engine lathe, milling machine, drilling machine, hobbing machine, grinder, gear shaper, testing center ...