1、 According to the certificate, the fireproof door is a product included in the type approval system, and the product needs type inspection before sales. The general type inspection report describes the specifications, dimensions, composition, materials, etc. of the sample in detail. When actually purchasing, the type inspection report needs to be obtained from the manufacturer. The fireproof door manufacturer sells directly, and provides the inspection report and qualification.

The difference between the fire rolling shutter door and the rolling shutter door How much is the steel fire door for the inside entrance door? One square meter steel fire door specification The fire rolling shutter door represents the price of steel Grade A fire door

2、 Check the appearance, the high-quality steel fireproof door is firmly welded, and the welding spots are evenly distributed; The external surface shall be sprayed flat and smooth; There shall be product mark, quality inspection mark and quality certification mark at the specified position. The qualified wooden fireproof door shall be intact without damage, and the surface shall be clean without plane marks, burrs and hammer marks; Corner cutting and butt joint shall be tight and flat; There shall be product mark, quality inspection mark and quality certification mark at the specified position.

Entrance door, double door, fireproof rolling shutter door and rolling shutter window, fireproof rolling shutter door, stainless steel Class B fireproof door, fireproof rolling shutter door, indicating technical standard for wooden fireproof door of door

3、 For figures, the overall dimensions of qualified fireproof door products should be less than or equal to the overall dimensions in the sample description, the door leaf thickness should be greater than or equal to the door leaf thickness in the sample description, the door frame sidewall width should be greater than or equal to the door frame sidewall width in the sample description, and the overall dimensions of fireproof glass should be less than or equal to the overall dimensions of fireproof glass in the sample description, The thickness of fireproof glass shall be equal to or greater than the thickness of fireproof glass in the sample description.

Code for design of residential entrance door of Henan Fire Door Factory Which door is a good quality stainless steel fire door Fire rolling shutter door indicates the height of fire door

4、 The fire door with qualified quality is generally heavier, but those very light fire doors must be fake products. The fire door leaf is filled with perlite plate, with flat structure, high strength and strong fire resistance. At the same time, it can be seen that the fire door is made of real materials.