【 Second-hand Doosan excavator models 380/420/520 】 We currently have a batch of high-quality second-hand Doosan excavators, including models 380, 420 and 520. All these devices have undergone strict testing and maintenance by a professional team, ensuring their good working condition. The working hours of all machines do not exceed 10,000 hours. For heavy machinery, this is a very young state, meaning they still have a long service life waiting for new owners to discover. - ** Power System ** : Equipped with a high-performance engine, it features strong power output and smooth operation characteristics, maintaining efficient operation even in harsh environments. Meanwhile, it has good fuel economy and can effectively reduce operating costs. - ** Hydraulic System ** : Equipped with an advanced hydraulic control system, it features high operational sensitivity and fast response speed, making it capable of handling both meticulous operations and heavy-load excavation with ease. In addition, the system also has a self-protection function. When encountering abnormal situations, it can automatically adjust to avoid damage. - ** Bucket Teeth ** : It is particularly worth mentioning that all these excavators are equipped with high-quality o2025-12-09 10:25:06