As I know, there are some such kind of cloths and dance property shops located around Minzu University of China and Beijing Dance Academy.

Dear Ms. Meng,
Thank you so much for your reply. How do I get there by subway from my hotel located at No.18A Jianguomennei Street ...(HOward Johnson Paragon Hotel. Are these shops just on the street so that I can see them. Once again, thanks and I look forward to your reply.

Forgot to tell that these two schools are neighbors. Well, you hotel is located in the walking-distance to the metro Line 2's station at Beijing Railway Station. So, please take it to Xizhimen station firstly and then transfer to bus 634 or 105, both of which could take your to the Minzu University of China directly. Or, at the Xizhimen station, you could transfer to the subway Line 4 and get off at National Library station. From the Exit A, you could walk to the Beijing Dance Academy and then the Minzu University.

On the other hand, on the way of subway Line 4 to the National Library, you could also get off at Beijing Zoo station, around which there are several large clothes wholesale markets. You could have a try also.