Fire doors - Daxing District, professional installation of fire doors

The first role of the family fire doors shut as the fire is particularly important, but when you buy inferior fire doors, fire doors no longer fire, how can you do? Municipal fire departments to investigate the destruction of a group of honeycomb paper instead of fireproof filling material inferior fire door, where firefighters describes the recipe selection of quality fire door trick. According to regulations, steel, wood fire doors can be divided according to the fire resistance of Class A, B, C three, fire endurance requirements were 90 minutes, 60 minutes and 30 minutes, and for the production of timber wood fire doors need to be drying and fire-retardant treatment, metal accessories used therein must be fireproof metal accessories. Selection of quality fire door has three strokes, the first trick is to check the appearance, quality steel \ fire doors welding firm, evenly distributed joints; smooth outer surface coating. And qualified wood fire doors should look intact without any damage, surface bare, no scats, burrs and hammer India; cutting corners, seams should be tight formation; at a predetermined position should the product logo, qualified quality inspection marks and quality certification (accreditation) mark. The company also supplies these products to similar products: wood fire doors, steel fire doors, fire shutter doors is a comprehensive, multi-domain of large enterprises. Brands include: "Shun Code," "Hong Diamond" "Dragon speed" and other famous brands, as well as a wholly owned subsidiary "of Zhejiang money for a tower Fire Technology Limited." It's "Zhejiang tower", "all a tower" is the Chinese Ministry of Public Security approved the professional production of security doors, fire doors sentinel enterprises. The company is located in the famous overseas Chinese doors, the famous Chinese hardware capital - Yongkang. The company is a design, development, manufacturing, sales and service as one of professional suppliers of all categories of home categories. The company officially founded in 2007, products include security doors, interior doors, fire doors three series; wherein the security doors, including international security door, non-standard security door;