In 2005, the largest production base of Fujian steel giant Huisman Group officially settled in Zhangzhou. The production base will produce and transport various large-scale steel making equipment for customers in Asia and the world's marine and land industries. In the same year, Shenyang Baotong Door Industry Co., Ltd. undertook a series of large-scale industrial lifting door projects in the project of the base. Among them, 4 reed doors used flexible lifting gates. The dimensions of the doors were 23.7 meters wide, 10 meters high, and 22.6 meters wide Meters, 13.5 meters high. According to the actual production conditions of Huisman Weimar Group, Baotong Doors applied the lifting arm technology in this project, which effectively solved the restriction of door lift by large equipment such as cranes.