How to buy a fire door

How to buy a fire door Security effects can not be separated from the support of security products. When many security companies have embarked on the road to international brands, the fire door industry that is closely related to our lives is very confusing. With the exception of a few brand enterprises, middle and low-end enterprises are trying to fish in trouble, selling high-quality products with low-quality products and drawing huge profits. Qualified fire doors have certain standards. The following are the aspects that experts need to pay attention to the quality identification of fire doors.

1. Class B wooden fire doors currently on the market may pass the fire inspection of the fire department, but Class A fire doors “will not meet a standard”. Fire inspection refers to the way the fire department detects the fireproof and smoke resistance of fire doors through fire. In general, Class A fire doors must pass a fire inspection for more than 90 minutes, while Class B must pass a fire inspection for at least 60 minutes.

2. Steel fire doors also reduce quality due to cost. According to the standard door opening fire doors, the minimum project price (excluding tax) for steel fire doors is 640 yuan/barrel, the most expensive quotation is 740 yuan/barrel, and most of the quotation is concentrated at 680 yuan. More than six hundred yuan price is not a real fire door, the layman can not see, whether it is the structure of the door, or fire seals, fire locks.

3. When purchasing a door, it is necessary to certify the business qualification of the dealer to see if the operator holds the “steel fire door” issued by the technical and security management department.

4. Should pay attention to careful inspection, qualified plate thickness of the door frame should be 2 mm or more, the door body thickness is generally more than 20 mm, the weight of the door is generally more than 40 kg.

5. When purchasing fire doors, pay attention to check whether the national certification standard "FAM" is printed on the door, and you can also request the dealer to provide the inspection report of the brand steel fire door fire door.

6. Remove the "cat's eye" and put his hand into the hole to test the internal filler;

7 can see the door frame, see if there is no "expansion seal"

8. The weight of the door, the regular fire door is generally much heavier than the ordinary steel door, and there is no empty sound when beaten.

9. Can see product signs, quality inspection qualified signs and type approval signs and other relevant technical information.

10. Check whether the fire doors have certificates and inspection reports. The certificates are product type approval certificates issued by the Fire Protection Products Conformity Assessment Center of the Ministry of Public Security. The inspection reports are national fixed fire extinguishing systems and fire-resistant components quality supervision and inspection centers or national fireproof building materials quality supervision and inspection. The inspection report issued by the center;

11. Look at the fire doors with or without a red identification mark. Each fire door must bear an identity mark;

12. If there is any product nameplate on the fire door, the manufacturer's name on the nameplate shall be consistent with the certificate and inspection report. The product name shall be clearly marked as fire door product;

13. Check whether the door closers, fire locks, and other accessories of the fire doors are complete, whether the fire seals are attached, and whether the double doors have a fire sequencer.

In general, if the counterfeiters intend to do so, no matter how good the identification technique is, there is only one stroke and the most spirit remaining.

At present, there are two kinds of sector bathtub on the market, regular bathtubs and sector  jacuzzi bathtub, so the choice of size should be based on its specific function. If it is an ordinary bathtub, then there is not much requirement for the choice of size, if it is a inddor Jacuzzi tub, It is suggested that the size be larger. Regarding the size choice, must consider the sector bathtub price, own toilet size is also considered an important factor. 

Although the sector bathtub can effectively save room space, but overall, the bathtub still occupies a lot of space, so consider the size of the bathroom. Make sure that after the bathtub is in, there is plenty of room in the bathroom. This choice of size is appropriate.

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