I finally found a big professional wool market in Beijing. It's called 毛纺城市场 and I'll post more about it when I have photos from my friend's camera.
While there I got the wool pictured below. The two big bunches (is "hanks" the word?) are wool yarn which is translated directly from chinese as "sheep hair line" so I know what it is. The smaller, er, rolls(?) are from another animal, and I don't know the english name, and can't imagine what it might be. Look at the picture and tell me what you think it is. Maybe otter wool? The yarn is nice and soft and to my untrained fingers doesn't feel any different from sheep wool.
The otter is going to make a nice hat for one of my female co-workers. You can't see in the scan but the lighter one is a super pale blue that she likes.
The rust and brown yarns look good together (to me only, apparently) and are similar to the colors of a robin. I don't know how to describe the thickness in English except that it's thicker than worsted weight. It feels soft and is relatively low on "frizzyness". I got quite a bit of it. Any project suggestion?