四川长江LT1070-1起重机具有以下优点：1. 高承载能力：长江LT1070-1起重机具有70吨的承载能力，能够满足大部分工地的起重需求。2. 卓越的操控性能：该起重机采用液压系统操控，操作简单、稳定性高，能够精确控制起重物的运动轨迹，提高工作效率。3. 灵活性强：该起重机具有回转角度大、尾部平台高度可调节等特点，能够适应各种复杂的工地环境。4. 智能化设计：长江LT1070-1起重机采用了智能化设计，具备故障自诊断、自动记录和远程监控等功能，能够更好地提升设备的可靠性和安全性。5. 安全可靠：该起重机配备了多种安全保护装置，如重载保护、限位保护和风速监测等，保障了设备和工人的安全性。综上所述，四川长江LT1070-1起重机具有高承载能力、卓越的操控性能、灵活性强、智能化设计和安全可靠等优点，适用于各类起重作业。

Sichuan Changjiang LT1070-1 crane has the following advantages: 1. high load capacity: Changjiang LT1070-1 crane has a load capacity of 70 tons, which can meet the lifting needs of most construction sites. 2. excellent maneuverability: the crane adopts the hydraulic system control, simple operation, high stability, and can accurately control the trajectory of the lifting load to improve work efficiency. 3. high flexibility The crane is characterized by large slewing angle and adjustable height of tail platform, which can adapt to various complex site environments.4. Intelligent design: Changjiang LT1070-1 crane adopts intelligent design with self-diagnosis of faults, automatic recording and remote monitoring, which can better enhance the reliability and safety of the equipment.5. Safe and reliable: The crane is equipped with a variety of safety protection devices, such as heavy load protection, limit protection and wind speed monitoring, etc., which guarantee the safety of equipment and workers. To sum up, Sichuan Changjiang LT1070-1 crane has the advantages of high load carrying capacity, excellent maneuverability, flexibility, intelligent design and safety and reliability, which is suitable for all kinds of lifting operations.