How to distinguish between high-quality and low-quality moisturizer products?

There are currently some manufacturers of moisturizers on the Internet, but because there are no industry standards, the phenomenon of products being mixed is serious. When companies purchase products, they can identify high-quality and inferior moisturizer products through the following methods. 1. Pour about 30ml of water into a small beaker, and slowly add a small spoonful of lubricant while stirring to see if it can be completely dissolved. If there is residue at the bottom, it is a poor-quality lubricant. 2. Check whether there are enterprise standards and test reports. The test report can show whether it has an impact on the performance of concrete. 3. Look at the packaging bags. Some inferior pipe moisturizer manufacturers do not pay attention to production, and the product packaging bags are simple. </p