reference 1 distinguishes between true and false conch profiles, such as 6 88 95. These models are actually the width of plastic steel. Measure yourself, 1 conch profile is divided into models. Just ask the seller. It says Conch Plastic Steel Blue. The protective film of real conch is hot-pressed when the machine leaves the factory. Check the film on the surface of plastic steel. < The fake film is uneven. There will be no small bubble film, flat and wrinkle-free As shown in the figure: there are bubbles in the middle, and the fake film is uneven. And you remove the film. The appearance of the profile is still sticky, as shown in Figure 6. First, look at the end wall thickness of the profile. It belongs to laser coding, 3 conch profiles have a long string of numbers behind the logo of conch at regular intervals, which is the plastic steel room when it is produced, and so on. It's so clear that it won't fade with water. As shown in the figure: fuzzy and black, the label of fake plastic steel is mimeographed and coded. Wipe with water will fade, and some will even disappear. As shown in the figure: even the n letters are quite rough) tough, 4 distinguish some fake products from color and feel. The plastic steel products with better quality are real conch or white with bluish (bluish white) appearance luster. It feels delicate and smooth. However, inferior products are very white or yellow and dull, with rough feel, and the inner wall of the profile is thin and uneven. You can't tell from the outside. The way to distinguish is to take a magnet and suck it at the profile, 5 whether there is steel lining or not. There is a 1.2mm steel lining in the real conch profile; There is no steel lining in the fake conch profile. The presence or absence of steel lining is intuitive from the cross section. If there is a steel lining, you can know it by sucking it. The price of plastic profiles depends on the weight, usually between two and three millimeters. The thicker the product, the higher the cost, and the thinner the product, the lower the cost, which is also an advantage of counterfeit products. As shown in the figure: the authenticity is greatly guaranteed. 7 Find the manufacturer recommended by Conch. And you can call the manufacturer's fake inquiry telephone number 5535848882 and input the 2-digit fake code on the profile according to the voice prompt. If the price is lower than that of 16 yuan per square meter, it is difficult to guarantee the quality and authenticity of the profile, no matter what series of conch plastic-steel windows. That is to say, the profile used is real, and neither the fittings of plastic window nor the steel lining can be guaranteed to be qualified. 9. Anti-counterfeiting steel seal mark at the bottom of CONCH product: Conch anti-counterfeiting plastic steel enters the 2-digit anti-counterfeiting code according to the prompt and is confirmed, so is Shide's method of distinguishing the authenticity of plastic steel profile.