below is the scene of the demolition of new Simon (Qian Jian gate) in the 50s of last century.
this old map is also marked with "iron grate door", this "iron grate door" is "Sunda gate", located in South Bin Street South, the specific position in the original plastic three factory west wall to the south. "Sunan gate" is a stone arch three hole water gate, each gate width 4.5 meters, 6 meters high, in the gate has the diameter 10 centimeters of iron grille, disperses the sheep head Valley to come the mountain flood water gate. The original dam of Xunan water gate is 20 meters long and 1.5 meters high. After liberation, it was named Xunan dam.
[b] the iron grate gate marked [/b]