This nitrate is not another whistle. It has never known what nitrate is before. It was once read as shaozi. In fact, it is called xiaozi, which means glass. From the section of Xiaogu Canal to the pedestrian street, there are many nitrate halls. The advertisements and storefronts of nitrate in the north are the most popular. There are various glassware, tableware and oil pots, and handicraft. They are very delicate. Xiao Juan people really made the glass realm! ____________