Harbin Optical Instrument Factory [China]

The angle gage mainly uses in the forestry survey. Determines standing timber chest-height sectional area per hectare.

1.The angle gage mainly uses in the forestry survey. Determines standing timber chest-height sectional area per hectare. The volume dexterous ,carryhome facilitates .

2.Technical Index

(1)Pole length adjustable,some two kind of scales.

(2)Constant: k=1,k=2

(3)size:140×14×41.5(mm)

(4)Weight:0.03kg

JG-1 angle gage