This series of jack lightweight and convenient, compact structure, while maintaining the durability of the original series based on the jack, jack rigidity enhanced strength, optimized to reduce by 35% of the original equipment redundancy weight. For use: YC series is mainly used for various levels of fine jack screw the tension bar and tension rod, tension pole pre-tensioned, and often in blue hanging in place using the push installation. The company can produce various specifications according to customer needs the size of the product.