1 , the main components of the horizontal lifting product and overall performance through rigorous inspection and testing , so reliability is greatly improved, to ensure safe use. 2 , the use of low- alloy structural steel , safe, reliable and durable. 3, using 800Mpa high strength lifting chain, segment playing style hook design ensures a slow lifting to prevent overload, high safety, long life 4 , rotation stability, high efficiency, small hand pull. 5 , double pawl , double guide wheel structure , more secure and reliable . 6 , small size, light weight , easy to carry . 7 , compact structure , smooth running machine , novel appearance . 8, the shell material is high-quality alloy steel, high rugged wear safety performance.