1. The crane is made of high-strength steel, a new generation lightweight platform, and a high starting point; 2. High quality hydraulic key components to enhance product competitiveness; 3. Multiple optional configurations to easily meet personalized customization needs; 4. Compact structure, flexible operation, fast speed, high efficiency, application of high-strength steel, lighter weight of the whole machine; 5. The variable amplitude mechanism has a main arm with a negative angle of 20 ° and two arms with a negative angle of 65 °, with a wide range of applications and flexible operation; 6. Advanced hydraulic system to improve the working speed of the entire machine, achiev