Mine Mine fire door fire door manufacturers, fire door prices, the underground fire doors, fire gates, fire fence dual doors, gates each fire, coal fire doors, fire doors fastest high speed the arrival of the manufacturers in Shandong St. coal, is Shandong's best quality coal, the most affordable prices is Shandong's coal, the most beautiful appearance is Shandong's coal, coal production in Shandong holy fire gates arrived fast, good quality, affordable, appearance beautiful. First, the product uses dual door for fire and fence between the mining main drainage pump and the main substation chamber; within the mining area substation channel; belt conveyors, winches, electrical power distribution equipment and electrical variations Chamber and so the channel, such as when a fire underground, so that combustion is not spreading, and ensure mine safety. Our documents are complete mine gate: Manual, certification, quality inspection reports, accompanied with the goods; all mine doors are sold throughout the country Dazhong Xiao coal, the main market, Inner Mongolia, Shanxi, Shaanxi, Sichuan, Xinjiang, Liaoning, Chongqing etc. Second, models, specifications and fence dual fire door there are four specifications, as follows: No. Model Specification Drawing No. 1 MFHSL1.4 × 1.8 B85-373.29 2 MFHSL1.6 × 1.8 B85-373.30 3 MFHSL1.8 × 2.0 B85-373.31 4 MFHSL2.1 × 2.0 B85-373.32 Third, the product description of the fire and the fence dual-use door for the Ministry of Coal Industry Design and Research Institute Wuhan coal mine design, product quality standards and testing standards strictly enforced Q / WMS-3011-2005 " Fire and fence dual doors. " Fourth, the product is mainly structural fire protection and fence dual doors from the frames, doors, locking devices and other components. 1, the door to the angle mullions and seal plate semicircular channel beam connection is made, no next door. 2, the doors for the angle, steel, welded steel mesh group, corresponding to install steel mesh steel doors. 3, the locking device using inside and outside by turning the handle and clamp.