How can the Chinese get away with making an exact copy right down to the brand name and number? That should be illegal.
Now you know why their are so many complaints against China and Chinese companies for trade mark and copyright violations. In fact, when the Chinese Government wants to "make nice" with the western world, the make a show of cracking down on this sort of thing, and getting their crack down reported in the media... but it never seems to last or have much wide-scale effect.
For a while, some of the knock off Stihl saws were coming without any of the identifying logos and graphics on the saws... but the packaging included a set of "replacement stickers" that the purchaser could put on. When you got done, it looked just like the real thing... almost.