How to judge the quality of flanges

How to judge the quality of flanges? This is a difficult problem for many flange buyers, especially those who purchase flanges for the first time. In the flange industry, there are Italian flange manufacturers, Chinese flange manufacturers and so on. How to infer that the products of Chinese flange manufacturers are superior to other products? As a professional Chinese flange manufacturer, Shanxi Haokun flanges Group Co., Ltd. explains and introduces the judgment methods of different flanges for the reference of flange suppliers.At present, there are many flange products in the market, and there are countless flanges of different brands and models. Among them, there are many "three noes" products that substitute inferior quality for inferior quality in the market. If we want to buy flange products with high quality and low price, we need to pay attention to the differences when ordering flanges: first, if the material is 304 stainless steel, we can know the authenticity as long as we take the magnet to aim at the flange and try it. Experienced buyers can judge the quality of products according to the strength of suction, If the material is qualified, the flange with strong suction and impure material has relatively weak suction, or even no suction. 2、 Carefully check the external surface of flange products. For products made of high-quality materials, the external edge is smooth and fine, and the reflection is very strong under the light; The surface gloss of inferior products is poor, the fine parts cannot be processed, and the edges and corners or recesses will have a sense of friction. Keep the above points in mind, and I hope you will beware of cheaters. In fact, the flange is a small product, which is not a precise component. It is easy to judge whether it is good or bad.