Recently, the Shanghai Administration for Industry and Commerce has monitored 11 types of security doors used in 11 undelivered properties in Minhang District and Baoshan District, and 8 types of security doors distributed by a building materials supermarket. The results announced yesterday are astonishing: there are only 2 types of pass, and the pass rate is only 10.5%. Among them, the security doors of 11 buildings were all unqualified, and the quality problems of security doors in 6 buildings were serious. Six of the 8 security doors distributed by building materials supermarkets were unqualified. The monitoring found that 6 kinds of anti-theft doors distributed by a building materials supermarket in Shanghai Jiajiajia Commercial Management Co., Ltd. were unqualified. The enterprises producing unqualified anti-theft doors include Yixing Tianma Fire Equipment Co., Ltd. and Shanghai Ajie Wood Products Co., Ltd. , Shanghai Hongcong Residential Supporting Engineering Co., Ltd., Shanghai Panyang Metal Products Co., Ltd., Shenzhen Blue Shield Industrial Co., Ltd. Shanghai Branch, Shanghai Dingyi Fireproof Material Co., Ltd., Shanghai Baixie Industry and Trade Co., Ltd., Shanghai Jitian Door Industry Co., Ltd., Shanghai Xuanyuan Metal Building Materials Co., Ltd., China Xinduo Group Co., Ltd., Shanghai Post Foreign Trading Co., Ltd., Wanjia Group, Sino-Swedish joint venture Asaholai-Wangli Group Co., Ltd., one hundred Wanjiaan Door Industry Co., Ltd., Shanghai Buyang Security Door Co., Ltd. and Shanghai Yonghe Door Industry Co., Ltd.
High speed shutter door is a rapid operating, anti-crash shutter door for indoor application . The most advantage of this door is that the opening/closing speed can reach to 0.6-1.8m/s, really fast action a lot than tranditional rollling shutter door. short opening and closing times reduce cooling loss, avoid airflow and enable a smooth operating procedure. They can also be designed in larger dimensions for the mining and aircraft industries.
High speed door can be easily installed, economical,quiet and efficient with electromechanical drive.
This door quickly though in/out open gate, ideal for warehouses,factories, hangars use, widths can be from 2m to 20 meters.
The material of this door are variety: PVC curtain to keep the insdie clean, heavy duty aluminum door with wind-resisitant function can wrok in heavy windy weather, and also the freezer door can be used in cold warehouse or somewhere like that.
Including models are:PVC High Speed Door, Aluminum Spiral High Speed Door, Self-Recovery repair door, Cold Storage Room Fast Door.
High Speed Door,PVC High Speed Door,Aluminum High Speed Door,Spiral High Speed Door Shenzhen Hongfa Automatic Door Co., Ltd. , https://www.hffastdoor.com