It is considered a first-tier brand in China, but as some enthusiastic netizens said, "The content of various harmful substances can be said to be the best controlled among all coatings, and it is far lower than the limit value stipulated by the country." , I can only say "haha". As long as it is a first-tier brand manufacturer, it can produce such good products. The problem is that the price of such products is too high and is not suitable for large-scale promotion, so it is impossible to control all products. Very good, and the "best" here, I don't know whether it is the definition given by this netizen himself, or whether it is based on a report issued by an official testing center, such as the National Building Materials Testing Center.