Shanxi gantry cranes, gantry cranes, Henan Province, Henan gravity provided by the Crane Co. gravity. Road Zhiyuan, temper forward. Gravity Henan Province Crane Co. (www.zlqzj.com.cn) strives to be and you win, symbiosis, strategic partners to move forward, the more determined to become the machining of the most influential business, and you leap together to succeed ! Henan Province gravity Crane Co. (formerly Xinxiang recorded Army Crane Co., Ltd.) is a domestic and international reputation for excellence, one of the larger crane professional manufacturer. Mainly engaged in single and double girder cranes, gantry cranes, ship cranes, bridge machine, grab, electric hoist, and other lifting equipment manufacturing, sales and installation. 1. Bridge Crane is widely used in power plants, garages, workshops, docks, etc. bulk material handling and transportation. 2. Bridge Crane cranes are heavy duty system. 3. Bridge Crane All agencies operating in the cab, platform cab into the direction of the door: the end, side entry and top entry. 4. Bridge Crane Lifting capacity including bucket Bai scratched. 5. Grab the opening direction of the main two parallel vertical beams. Gravity Henan Province Crane Co. (formerly Xinxiang recorded Army Crane Co., Ltd.) is a domestic and international reputation for excellence, one of the larger crane professional manufacturer. Mainly engaged in single and double girder cranes, gantry cranes, ship cranes, bridge machine, grab, electric hoist, and other lifting equipment manufacturing, sales and installation. 10 BC, the Roman architect Victor Ruwais worked in its construction manual describes a lifting machinery. This machinery has a mast, mast mounted pulley, by guyed mast position, using a winch to pull the rope through the pulley to lift heavy objects. Some overweight machinery available two gantry crane mast constitutes herringbone Chongqing gantry crane to lift the object lateral movement, but only slightly, the operation is very difficult. To the 15th century, Italy invented the jib cranes, to solve this problem. This crane has roots inclined cantilever arm is equipped with a pulley top Guangdong gantry crane, lifting both can be rotated. But until Zhejiang gantry crane, various human use mechanical lifting the 18th century are also to human, animal-powered, the starting weight, range and efficiency is very limited. In the late 18th century, British Watt invented the steam engine improvements and after lifting machinery provided the impetus for the conditions. 1805, London Lennie Grand engineers built the first steam dock overweight machine. In 1846, Britain's Armstrong put Newcastle dock a steam machine to overweight hydraulic cranes. Early 20th century, Europe began to use tower cranes,