Dazheng Nitrogen Pavilion is located in Xiaojuan Street, where the whole street is covered with Nitrogen Coffins. In Japan, the tube glass shop is called Nitrogen Shop. Dazheng Whistle Shop is a relatively large shop. It has a certain popularity and scale in the local area. It is also the representative of this street whistle shop. Dazheng era is the peak period of Japanese glass technology. Dazheng Whistle Shop inherits the traditional technology. Today the shop is located in a whistle shop that integrates glass history, glass workshop, exquisite exhibition and manual experience.