1、920EES adopts LiuGong 's customized Yuchai A05 electro-injection engine is equipped with level 2 auto-idling function as standard, ensuring efficiency and more fuel saving at the same time. 2、The boom and arm structure is fully optimized to avoid stress concentration, 100% ultrasonic detection of key welds to eliminate welding defects, ensure the reliability and durability of the product. 3、Excellent maintainability in the industry, one-stop maintenance on the ground, self-tensioning engine