雷乔曼机械639G装载机的优点有：1. 功能强大：639G装载机具有较大的装载能力和卸载高度，能够快速高效地完成各类装卸工作。2. 燃油经济性：639G装载机采用先进的燃油经济技术，能够有效降低燃油消耗，节约运营成本。3. 操控灵活：配备精准的操控系统和灵敏度调节功能，操作起来非常方便和灵活。4. 舒适性优越：639G装载机采用人性化设计，驾驶室宽敞舒适，配备舒适的座椅和空调系统，使操作人员能够在长时间工作中保持舒适。5. 可靠性高：雷乔曼机械是一家知名的装载机制造商，639G装载机采用优质材料和先进技术生产，具有较高的可靠性和耐用性。6. 保养维护简便：639G装载机设计合理，易于保养和维护，减少了维修成本和维修时间。总的来说，雷乔曼机械639G装载机具有强大的功能、高效的性能和良好的可靠性，能够满足各种装卸需求，并提高工作效率。

The advantages of Leichtman Machinery 639G loader are: 1. Powerful function: 639G loader has large loading capacity and unloading height, which can complete all kinds of loading and unloading work quickly and efficiently. 2. Fuel economy: 639G loader adopts the advanced fuel economy technology, which can effectively reduce the fuel consumption and save the operating cost. 3. Flexible operation: equipped with precise control system and sensitivity adjustment function, it is very convenient and flexible to operate. 4. function, the operation is very convenient and flexible. 4. superior comfort: 639G loader adopts humanized design, spacious and comfortable cab, equipped with comfortable seats and air-conditioning system, so that the operator can keep comfortable during long working hours. 5. high reliability: Leichtman Machinery is a well-known loader manufacturer, 639G loader adopts high-quality materials and advanced technology to produce, with high Reliability and durability.6. Easy maintenance and upkeep: 639G loader is well designed and easy to maintain and upkeep, which reduces the repair cost and repair time. All in all, Rejoman Machinery 639G loader has powerful functions, efficient performance and good reliability, which can meet various loading and unloading needs and improve work efficiency.