An insulated rotating parts in welding engineering design, the protection overhead flight vehicles. Two heavy lift capabilities, with powerful but lighter weight system. 3 rotating parts and components are carried out in accordance with EN1677-1 load test, at least 2.5 times the working load limit. 4 all rotating parts during the manufacturing process is individually tested to ensure insulating properties can defense 1000V high voltage. Each product has a factory packing insulation test certificate. 5 insulated design with ball bearings rotating parts can be completely rotated at load conditions. 6 BG obtained by the German certification company. Our company is mainly sold throughout the country, including Beijing, Shanghai, Qingdao, Dalian, Jiangsu Province, Nanchang, Jinan, Harbin, Changchun, Ningbo, Chongqing, Zhengzhou, Fuzhou, Urumqi, Kunming, Suzhou , Wuxi, Hangzhou, Nanjing, Xi'an, Chengdu, Shenyang, Hefei, Taiyuan, Shijiazhuang, Hohhot, and other cities and towns. Tianjin iron owl selling high quality lifting products? Low price? Good service? Stresses credibility? Welcome to inquire and look forward to cooperating with you. Caller: 1`3`7`5`2`4`2`5`8`1`9 ?? Q: 2788869454