The main difference between domestic and imported hoses is product formula and production process.
In the huge rubber industry, it is inevitable to avoid a mixed situation. We will explain in detail the methods that may help users select good products for visual inspection. You can see the hands-on methods. 1. Is the inner glue degummed? The problem is that there are too many inferior glues mixed in and the formula is not done right. 2. Whether the inner rubber layer is uniform is related to the equipment modulation. A good product should have a tight and uniform inner rubber layer. 3. Use your fingers to pinch off the adhesive layer. The elastic one is better! 4. The one with high brightness is glue type 5, which is tested by invisible method. The national standard for pressure test requires that the test pressure is twice the working pressure and the burst pressure is 3.4 times. It needs to be identified by the relevant department. It cannot be seen under normal conditions. , and don't just read the manufacturer's written text.
Well, after users master the simple identification method, they can buy better hoses.