1. QY20C起重(zhòng)机采(cǎi)用优质材料和先进(jìn)技术制造，具有良好的品质和可(kě)靠性。2. 起重(zhòng)机具有较大的起重(zhòng)能(néng)力，最大起重(zhòng)量可(kě)达到20吨，能(néng)够应对一般工程项目的各种起重(zhòng)需求。3. 采(cǎi)用伸缩式臂架设计，可(kě)以根据实际工作(zuò)需求进(jìn)行调整，灵活性较高。4. 配备了先进(jìn)的液压系统，具有稳定的工作(zuò)性能(néng)和操作(zuò)控制性能(néng)。5. 驾驶室设计人性化，操作(zuò)简单，提高了操作(zuò)员的工作(zuò)效率和安全性。6. 可(kě)以适应各种复杂的工作(zuò)环境，如建筑(zhù)工地、码头、仓库等。7. 起重(zhòng)机具有较高的移动性，可(kě)以快速到达工作(zuò)现场，并能(néng)进(jìn)行360度旋转。8. 采(cǎi)用了各种安全设备，如重(zhòng)载报警器、平衡装置等，有效保证了工作(zuò)安全。9. 维护保养方便，经济实用，降低了使用成本。总的来说，三一重(zhòng)工QY20C起重(zhòng)机具有良好的质量和可(kě)靠性，高起重(zhòng)能(néng)力，灵活性强，适应性广，安全性高，操作(zuò)方便等优点。

1. QY20C crane is made of high quality materials and advanced technology, with good quality and reliability. 2. The crane has large lifting capacity, the maximum lifting capacity can reach 20 tons, which can cope with all kinds of lifting needs in general projects. 3. It adopts telescopic boom design, which can be adjusted according to the actual working needs, with high flexibility. 4. It is equipped with advanced hydraulic system, with stable working performance and operation control performance. 5. The cab design is user-friendly and simple to operate. 6. It can adapt to various complicated working environments, such as construction sites, docks, warehouses, etc. 6. stable working performance and operation control performance.5. The cab design is humanized and simple to operate, which improves the efficiency and safety of the operator.6. It can adapt to various complex working environments, such as construction sites, docks, warehouses, etc.7. The crane has high mobility and can reach the work site quickly and rotate 360 degrees.8. It adopts a variety of safety equipments, such as heavy load alarm, balancing device, etc., which effectively ensure the safety of the crane. and balancing device, etc., which effectively guarantee the work safety. 9. Easy maintenance, economical and practical, which reduces the cost of use. Overall, Sany QY20C crane has the advantages of good quality and reliability, high lifting capacity, flexibility, wide adaptability, high safety and easy operation.