I used to work in the sales department of this company. In fact, the domestic valve market is already very chaotic. There are a lot of fakes and copycats. It mainly depends on your own understanding of valves. Generally, valve bodies have cast trademarks on them, and their appearance is also very good. Counterfeit ones will not. In addition, Toyama Valve in Taiwan mainly produces copper valves. . . . . There is also a factory in Suzhou, and those who have been there will understand what is going on. . . .