Zhejiang Xianfeng Machinery Co., Ltd. (former Factory No. 5316), a military industrial enterprise with 45 years of history, produces and sells a full range of domestically Xianfenging and technologically-leading door open......Zhejiang Xianfeng Machinery Co., Ltd. (former Factory No. 5316), a military industrial enterprise with 45 years of history, produces and sells a full range of domestically Xianfenging and technologically-leading door openers. It has been engaged in the R&D of door opener for 25 years and boasts a high reputation in the industry and powerful market competitiveness.