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四川長江QYT12起重機的優點如下：1. 大起重量：QYT12起重機的最大起重量達到12噸，能夠滿足大部分中小型項目的起重需求。2. 高工作效率：起重機采用液壓操作系統，可以實現平穩、高效的起重操作，提高工作效率。3. 靈活性強：起重機具有360度旋轉能力，可以在狹小的工地環境中靈活操作，提高工作的靈活性。4. 穩定性高：起重機設計采用穩定的腳架結構和平衡裝置，能夠保證起重過程的穩定，提高安全性。5. 操作簡便：起重機采用電腦控制系統和液晶顯示屏，操作簡單方便，降低了操作人員的學習成本。6. 質量可靠：四川長江是一家有著多年起重機制造經驗的企業，其產品質量可靠，有完善的售后服務體系。7. 價格優勢：相比其他品牌的起重機，四川長江QYT12起重機價格較為優惠，具有一定的競爭力。綜上所述，四川長江QYT12起重機具有大起重量、高工作效率、靈活性強、穩定性高、操作簡便、質量可靠和價格優勢等優點，適用于各種中小型項目的起重需求。

The advantages of Sichuan Changjiang QYT12 crane are as follows:1. Large lifting capacity: the maximum lifting capacity of QYT12 crane reaches 12 tons, which can meet the lifting needs of most small and medium-sized projects.2. High working efficiency: the crane adopts hydraulic operating system, which can realize smooth and efficient lifting operation and improve the working efficiency.3. Flexible: the crane has a 360-degree rotating capacity, which can be flexibly operated in the narrow site environment, improve the flexibility of work. 4. high stability: the crane is designed with stable tripod structure and balancing device, which can ensure the stability of the lifting process and improve safety. 5. easy operation: the crane adopts a computerized control system and LCD display, which makes the operation simple and convenient, and reduces the cost of learning for the operator. 6. reliable quality: sichuan changjiang is a company with many years of Crane manufacturing experience, the quality of its products is reliable, there is a perfect after-sales service system. 7. price advantage: compared with other brands of cranes, Sichuan Changjiang QYT12 crane price is more favorable, has a certain degree of competitiveness. In summary, Sichuan Changjiang QYT12 crane has the advantages of large lifting capacity, high efficiency, flexibility, high stability, easy to operate, reliable quality and price advantage, applicable to a variety of small and medium-sized projects lifting needs.