CTHY HERITAGE (RING) 未購入者限定】RING GAUGE | CTHY,Hitachi Upgrades Zaxis-7 Medium, Large Excavators | Construction Equipment,ZX530LCH-7 Large Excavators - HitachiCM Europe,Hitachi launches ZX Secure™ Service Plan for Select Excavators | Grading and Excavating,Hitachi launches ZX Secure™ Service Plan for Select Excavators | Grading and Excavating