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About Wang Shui
HCL and HNO3 are mixed with a mixed acidity of 3 1 ratio called "Wang Shui"? It can almost dissolve all metals? Since a lot of things can be dissolved, how can you still use Wang Shui as detergent? Do you not melt the container and reagents?
What kind of advertisement is diamonds that forever?
Remember this advertising word but don't know what brand it was?