In order to manufacture world-class products according to Komatsu standards strictly, we have invested a lot and made several technological improvements in the production of key parts and components, and the control of critical working procedure. We have introduced advanced equipment such as Japanese infrared gas coverage carburizing and nitriding heat treatment production line, plate pretreatment equipment, KT-610 numerical control cutting and bending machines, German SCHARMANN machining center, American Gleason hardening press machine, German ZSTZ800x14 cylindrical gear grinding machine and homemade digital display horizontal boring machine, and equipped main equipment with computer automatic control system.