On May 10th 2022, we moved to the new factory, which covers an area of 3000 square meters with more than 20 production lines and advanced management system. Factory located on South of Hanjiang Street and East of Yulongshan Road,Qinghe County,Xingtai City,Hebei Province. Factory got the ISO 9001 Certificate. The international sales office move to Room 601, Floor 6, Building 1, No. 380, Jiangnan Avenue, Binjiang District, Hangzhou City, Zhejiang Province. All of the sales have over ten years of international sales experience. We offer on stop protection to Fire, Smoke & Acoustic and Draught. Welcome all of our customers visit us in the near future.