1M铜量水尺，折尺，测深杆

黄铜材料， 圆形，1M 公制量水尺

SOUNDING ROD BRASS 5-FOLDED_SQUARE METRIC&INCH 1MTR
A graduated square or round straight or jointed folding brass rod with attached ring; used for measuring the depth of liquid contained in a space. When ordering, specify the shape of the rod, the length, and the number of folds.