The three families of Kpl valves are ttg, hero and wb. Good grades are the premise of powder absorption. There is no doubt that ttg, hero and wb have made outstanding achievements in the past two years, so they suck powder. Because of the epidemic situation and the draft, there are a large number of college students and groupies in the new powder in the past two years. They are the main users of watercress, so there has been a surge in watercress powder. The three royal families, which also achieved excellent results, were kicked out because they had enemies before and enemies after, and no one joined the group, which constituted the situation of the mass group so far. The competition circle is changing, and the composition of the three companies may change in the future, but this is the case at present.