How to choose a fire door
1. Check the appearance
When buying a fire door, you must first judge the quality of the fire door by its appearance. If it is a good fire door, the distribution of solder joints on the appearance will be relatively uniform, without obvious defects, and the spray paint will appear smooth. If irregularities and obvious defects are found in the appearance, try not to choose such products.
Second, look at the seal
Fire door manufacturers remind consumers that at present, all qualified fire doors will have a qualified seal. If there is no such seal, it means that the product has not passed the regular inspection and is unqualified. Whether there is obvious arching from the appearance, and check whether the seal is straight, if there is such a sign on the seal, there may be a problem.
Three, the number
The external dimensions of qualified products should be less than or equal to the external dimensions in the sample description, and they are all equipped with 3C certificates. The width of the side wall of the door frame should be greater than or equal to the width of the door frame side wall in the sample description, and the thickness of the door leaf should be greater than or equal to the thickness of the door leaf in the sample description. The thickness of the glass should be greater than or equal to the thickness of the fire-resistant glass in the sample description, and the outer dimension of the fire-resistant glass should be smaller than or equal to the outer dimension of the fire-resistant glass in the sample description.