There are five ways to buy high-quality fire doors.

    Fire door is the first effect of home fire prevention is particularly important, but when you buy to disable fire door, fire door no longer fire, what do you do? The fire department of our city investigated and destroyed a batch of fire protection doors with honeycomb paper to replace the fireproof filling materials, and the fire fighters introduced a few tips for selecting high-quality fire protection doors. In accordance with the rules, steel, wooden fire door according to the fire resistance can be divided into class a, class b and class c three categories, fireproof limit for 90 minutes, 60 minutes and 30 minutes respectively, and used in the manufacture of wood fire door wood boring and flame retardant processing, in which the hardware accessories hardware accessories for fire protection is also necessary.

    It is important to remind us that there are five key ways to choose the high quality fire prevention door:

    The first is to look up the appearance, the high quality steel fire door welding is strong, the solder distribution is even; The exterior surface is sprayed with smooth lubrication; In the direction of the rules, there should be product identification, quality inspection mark and quality certification (approval) mark. The qualified wooden fire doors should be intact, without damage, clean surface, no scratches, burrs and hammer marks. Cut corners and quilts should be flat.

    The second is for Numbers, dimensions of qualified products shall be less than or equal to the sample dimensions of paint, door leaf thickness should be greater than or equal to the sample painted the door leaf thickness, doorframe wall width should be greater than or equal to the sample to describe the doorframe wall width, flameproof glass dimensions should be less than or equal to the sample to describe the flameproof glass dimensions, flameproof glass thickness should be greater than or equal to the sample to describe the flameproof glass thickness.

    The third way is to see the seal, the qualified steel, wood fire door should set fire seal, the seal should be straight, no arch, and the national inspection organization issued the qualified test statement.

    The fourth is to estimate the weight, the quality of the fire door is generally heavy, and those very light fire doors must be quality counterfeit products.

    The fifth is to check the certificate, fire door is classified as type approval criteria of products, products are before sales requirements in terms of type of inspection, general type check statements are detailed describes the sample of the specifications of the scale, composition, material and product photos, etc., in the actual purchase, to the manufacturer to woo type inspection statement.