... meeting the require rack case,flight case,tool case,U case;We can make all kinds of cases according ... our cases can be classified into two kinds: the U rack case and the case whose size should be given ... case, mixer case, audio case and so on.The U rack case’s length and width are invariable, but the ... height is variable. 1U is about 44.5MM. The U rack case can be classified as: monolayer and double deck ...