柳工QY12C起重机有以下优点：1. 功能强大：柳工QY12C起重机配备有大功率发动机和高强度起重臂，能够快速、准确地完成各种起重工作。2. 多功能：该起重机具备旋转、伸缩、抬升等多种功能，能够适应不同的工地和作业需求。3. 高效节能：柳工QY12C起重机采用先进的液压系统和电子控制技术，能够实现高效的能源利用和减少能源浪费。4. 操作方便：起重机配备有人性化的操作控制面板和智能化的控制系统，操作方便且可靠。5. 安全可靠：柳工QY12C起重机采用优质的材料和先进的结构设计，具备稳定性好、安全可靠的特点。6. 便于维护：起重机的主要部件采用模块化设计，易于维护和更换，减少了维护成本和时间。7. 长寿命：柳工QY12C起重机经过严密的耐久性测试，具有长寿命和高度可靠性。8. 适应性强：该起重机适用于各种工况和工地，可满足不同用户需求。总之，柳工QY12C起重机具有功能强大、多功能、高效节能、操作方便、安全可靠、便于维护、长寿命和适应性强等优点。

LiuGong QY12C crane has the following advantages:1. Powerful function: LiuGong QY12C crane is equipped with high-power engine and high-strength lifting arm, which can quickly and accurately complete a variety of lifting work.2. Multi-functionality: the crane is equipped with a variety of functions such as rotating, telescoping, lifting and so on, and it can be adapted to the different construction sites and operational needs.3. High efficiency and energy-saving: LiuGong QY12C crane adopts the advanced Hydraulic system and electronic control technology, which can realize efficient energy use and reduce energy waste.4. Convenient operation: the crane is equipped with user-friendly operation control panel and intelligent control system, which is convenient and reliable.5. Safe and reliable: Liugong QY12C crane adopts high-quality materials and advanced structural design, which is stable, safe and reliable.6. Convenient maintenance: the main components of the crane adopt modular design, which can adapt to different sites and operational needs. The main components of the crane adopt modularized design, which is easy to maintain and replace, and reduces the maintenance cost and time.7. Long life: LiuGong QY12C crane has been subjected to rigorous durability testing, which has a long service life and a high degree of reliability.8. Adaptable: the crane is suitable for a variety of working conditions and construction sites, and can meet the needs of different users. In a word, LiuGong QY12C crane has the advantages of powerful, multi-functional, high efficiency and energy saving, easy to operate, safe and reliable, easy to maintain, long service life and strong adaptability.