Crane of structure: bridge cranes. In rectangular space and over the job, and more for workshops, warehouses, open yard loading and unloading goods, etc., have girder cranes, bridge cranes, Cranes bridge, carrying bridges. Girder cranes: Beam cranes including single girder crane and double girder bridge crane. Crane safety devices: To ensure safe and reliable operation of lifting 35 tons Buy truck crane, crane equipped with better safety devices in Zhejiang 35 tons truck crane, so that in case of an accident, mechanical or protect Calls attention to second-hand 35 ton truck crane, which play a security role. Each hydraulic system relief valve: Can cause abnormally high pressure loop to prevent damage to the hydraulic pumps and motors, and to prevent the overload state