Does Qinlaozhuang Street in Yucheng sell powder for painting walls?

Yes According to Baidu map, there is a shop selling powder for painting walls in Minglu Putty Wholesale Center of Qinlaozhuang Street International Trade Port in Yucheng. Qin Laozhuang Street in Yucheng is a wholesale street, selling non-staple food such as hardware department stores, decoration materials, tobacco, alcohol, flowers and gifts, and accommodation hotels.