四川长江QYE12起重机的优点有：1. 高起重能力：QYE12起重机的最大起重能力达到12吨，能够满足大部分中小型起重作业的需求。2. 多功能性：QYE12起重机可配备多种工作设备，比如鹰钩、吊车钩、夹具等，适用于不同类型的作业。3. 灵活性：QYE12起重机具有360度旋转和多级伸缩的功能，能够灵活适应不同的作业环境和需求。4. 操作简便：QYE12起重机配备了先进的电子控制系统和智能操作台，操作简便、灵敏，提高了工作效率。5. 可靠性高：QYE12起重机采用了先进的工程机械设计和制造技术，具有良好的稳定性和可靠性，能够在各种恶劣的工作环境下正常运行。6. 安全性：QYE12起重机配备了多重安全保护装置，比如过载保护、限位保护等，可以有效保障操作人员和周围环境的安全。7. 经济性：QYE12起重机的价格相对较低，使用成本较低，是中小型企业选择的理想起重设备。总之，四川长江QYE12起重机具有高起重能力、多功能性、灵活性、操作简便、可靠性高、安全性和经济性等优点，适用于各种中小型起重作业。

The advantages of Sichuan Changjiang QYE12 crane include:1. High lifting capacity: the maximum lifting capacity of QYE12 crane reaches 12 tons, which can meet the needs of most small and medium-sized lifting operations.2. Versatility: QYE12 crane can be equipped with a variety of working equipment, such as eagle hooks, crane hooks, clamps and so on, which are suitable for different types of operations.3. Flexibility: QYE12 crane has a 360-degree rotation and multi-stage telescopic function, which can flexibly adapt to different operating environments and needs.4. Easy operation: QYE12 crane is equipped with advanced electronic control system and intelligent operator console, which is easy and sensitive to operate and improves the working efficiency.5. High reliability: QYE12 crane adopts the advanced engineering machinery design and manufacturing technology, which has good stability and reliability, and is able to Normal operation in a variety of harsh working environments.6. Safety: QYE12 cranes are equipped with multiple safety protection devices, such as overload protection, limit protection, etc., which can effectively protect the safety of the operator and the surrounding environment.7. Economy: QYE12 cranes are relatively low in price and low in cost of use, which makes them ideal lifting equipment for small and medium-sized enterprises to choose. In short, Sichuan Changjiang QYE12 crane has the advantages of high lifting capacity, versatility, flexibility, easy operation, high reliability, safety and economy, and is suitable for a variety of small and medium-sized lifting operations.