... induction hardening 1.Description of items:High quality of Spare parts for D155,including track link,Track shoe,track roller, ... hardening & stress relieve;Machining:Mazak machining center; Komatsu dozer parts Verified Information This information is Verified by TÜV Rheinland ... machine 4M; Huaxin 3 1.0 Acceptable Machining center HASS, EC-400PP; MAZAK, HCN6000 II; LIWEI, VMC25; LIWEI, VMC40; NJ, ...