459/552 Chassis (IronGray) 製程:冷鍛模沖壓 CNC車床加工 銑床鑽孔攻牙 脫脂皮膜 高?漆噴塗(鐵灰)Manufacture Procedure:Cold Forging Die CastingCNC Lathe MachiningSurface Conversion ProcessThermo Spray Painting(Iron Gray)