1. 功能多样：四川长江QYT20起重机具有吊装、携带和运输等多种功能，适用于各种吊装作业的需求。2. 高效节能：起重机采用高效的液压系统和电控系统，具有较低的能耗，能够提高作业效率，减少能源消耗。3. 安全可靠：起重机配备有多种安全装置，如过载保护、断锁、限位器等，能够确保操作过程中的安全性，有效预防事故的发生。4. 操作简便：起重机采用先进的操控系统，操作简单方便，人性化设计，提高了工作人员的操作效率。5. 适用范围广：起重机适用于各种场地和环境，能够在狭小空间和复杂地形中进行作业，灵活性强。6. 结构坚固耐用：起重机采用高强度钢材制作而成，具有良好的抗风抗震性能，能够在恶劣环境下进行安全稳定的作业。7. 维护方便：起重机的维护保养相对简便，各部件易于更换和维修，能够降低维护成本和维修时间。总之，四川长江QYT20起重机具有多功能、高效节能、安全可靠、操作简便、适用范围广、结构坚固耐用和维护方便等优点，是一种理想的起重设备。

1. Diversified functions: Sichuan Changjiang QYT20 crane has a variety of functions such as lifting, carrying and transporting, which is suitable for a variety of lifting operations.2. High efficiency and energy saving: the crane adopts a highly efficient hydraulic system and electronic control system, which has low energy consumption and can improve operational efficiency and reduce energy consumption.3. Safe and reliable: the crane is equipped with a variety of safety devices, such as overload protection, break locks, limiters, etc., which can ensure safety during operation. The crane is equipped with various safety devices, such as overload protection, break lock, limiters, etc., which can ensure the safety of the operation process and effectively prevent accidents.4. Simple operation: the crane adopts advanced control system, which is simple and convenient to operate, and the humanized design improves the operation efficiency of the staff.5. Wide range of application: the crane is suitable for a variety of venues and environments, and is able to operate in narrow spaces and complex terrains, with strong flexibility.6. Structural ruggedness and durability: the crane is made of High-strength steel made of good wind and seismic performance, can be safe and stable operation in harsh environments. 7. easy maintenance: crane maintenance is relatively simple, the components are easy to replace and repair, can reduce maintenance costs and maintenance time. In short, Sichuan Changjiang QYT20 crane has the advantages of multi-functional, high efficiency and energy saving, safety and reliability, easy operation, wide range of application, durable structure and convenient maintenance, etc. It is an ideal lifting equipment.