Items Of Find A Good Door

- May 28, 2019-

The purchase of high-quality fire doors have three major tricks, the first trick is to check the appearance, high-quality steel  Fire Door welding firm, Welding point distribution is uniform, the outer surface spraying smooth. and qualified wooden fire door appearance should be complete, no breakage, surface net light, no planer marks, burrs and hammer printing, cutting angle, stitching should be strict and smooth, in the specified location should be product signs, quality inspection qualified signs and quality certification (recognition) qualified signs. The second trick is to the number, the shape of the qualified product should be less than or equal to the sample description of the dimensions, the fan thickness should be greater than or equal to the sample description of the fan thickness, the door frame side wall width should be greater than or equal to the sample description of the door frame side wall width, fireproof glass dimensions should be less The thickness of the fireproof glass shall be greater than or equal to the thickness of the fireproof glass in the sample description. The third trick is to look at the seal, qualified steel, wood fire door should be set up fire sealing strip, the seal should be straight, no arch, and there is a national testing agency issued by the qualified testing report.