沃尔华GNQY-Z4起重机的优点有：1. 高性能：该起重机采用先进的技术和设计，具有出色的性能表现。它能够轻松应对各种起重任务，并确保操作的高效和准确。2. 多功能：该起重机配备了多种功能和附件，可以满足不同场景和需求的起重工作。无论是在建筑、能源、矿山还是制造业，它都能发挥出色的功能。3. 高安全性：沃尔华GNQY-Z4起重机采用了多项安全设计和技术，包括智能化和自动化控制系统，以及稳定的结构和可靠的制动装置。这些都有效地保障了起重工作的安全性。4. 环保节能：该起重机采用了节能环保的设计和技术，包括转矩限制装置、防爬装置和防倾装置等。这不仅有助于保护环境，还能降低使用成本。5. 操作便捷：沃尔华GNQY-Z4起重机配备了先进的控制系统和仪表，使操作人员可以轻松地掌握和控制机器的运行状态。同时，它还具备人性化的设计，提供了舒适和便捷的操作环境。总的来说，沃尔华GNQY-Z4起重机具有性能卓越、多功能、高安全性、环保节能和操作便捷等优点，适用于各种起重任务的需要。

Advantages of Volvo GNQY-Z4 crane include:1. High performance: the crane adopts advanced technology and design, and has excellent performance. It can easily cope with a variety of lifting tasks and ensure efficient and accurate operation.2. Multi-functionality: the crane is equipped with a wide range of functions and attachments to meet different scenarios and needs for lifting work. Whether it is in construction, energy, mining or manufacturing, it can perform excellent functions.3. High safety: The Volvo GNQY-Z4 crane adopts a number of safety designs and technologies, including intelligent and automated control systems, as well as stable structures and reliable braking devices. These effectively guarantee the safety of lifting work.4. Environmental protection and energy saving: The crane adopts energy-saving and environmental protection designs and technologies, including torque limiting device, anti-climbing device and anti-dumping device. This not only helps to protect the environment, but also reduces the cost of use.5. Convenient operation: The Walwart GNQY-Z4 crane is equipped with advanced control system and instrumentation, so that the operator can easily grasp and control the machine's operating status. It also has a humanized design, providing a comfortable and convenient operating environment. Overall, Volvo GNQY-Z4 crane has the advantages of excellent performance, multi-functionality, high safety, environmental protection and energy saving, and convenient operation, which is suitable for a variety of lifting tasks.