Buy electric roll-up door maintenance products electric roll-up door maintenance windows should grasp four words in quality: firm, flat, accurate and dense. Having mastered these four words can reduce the unnecessary waste of consumers buying electric roll-up door repair windows.
1. Firm means that the electric roll-up door repair window should be firm, plastic electric roll-up door...
Buy electric roll-up door maintenance products electric roll-up door maintenance windows should grasp four words in quality: firm, flat, accurate and dense. Having mastered these four words can reduce the unnecessary waste of consumers buying electric roll-up door repair windows.
1. Fixation means that electric roll-up door maintenance windows should be firm. Plastic electric roll-up door maintenance products electric roll-up door maintenance window frames and four corners of the fan are usually welded. The national standard requires that the average angle strength should reach more than 3000N. For example, regular welding equipment is required in this respect to ensure that the small processing shops on the road are basically not guaranteed. In addition, the connectors and fasteners should be firm. Because the main material of the plastic window is PVC, and its section wall thickness is usually about 2.3mm, it cannot withstand hardware such as casement window hinge. They need to be supported by a repair product with a thickness of electric roll-up door inside, so before purchasing, carefully observe whether the manufacturer has the possibility of missing a small amount of weight or cutting corners, electric roll-up door it is not easy to check the thickness of internal electric roll-up door repair product lining after the repair window is made into finished products.
2. Flat means that the electric roll-up door repair window should be flat, which includes that the welding angle cannot be misaligned and the two windows cannot be spliced. Flat is mainly reflected in appearance, and it is also an important project that brings aesthetic feeling to our vision. Flat is also embodied in the national standard, for example, the height difference of welding angle should be within the range of 0.3mm, etc. It doesn't matter if you don't know the national standard in this situation, but you have to look at his sample window and ask its appearance quality to reach the sample window. Generally, the quality of the sample window displayed by merchants is OK.
3. It must mean accuracy, mainly accurate size. It includes the size of the opening and the size of the fan and frame after installation in actual measurement. The inaccuracy of the actual middle size will often affect the opening of the electric roll-up door maintenance window, electric roll-up door the sealing of the maintenance window, etc. Users can simply know that ordinary electric roll-up door repair window frames and fans are generally 8-10mm. If under dimension (such as 4-5mm), the sealing performance is questioned.
4. Density refers to the sealing performance. The size mentioned above will affect the sealing. Here, the unqualified accessories purchased by the manufacturer will also affect the sealing. For example, the inferior rubber strips used by some manufacturers began to shrink within half a year.
