Brief:
Small Type structure and cut down the cost of drilling

Reliable waterproof structure high stability and high sensitivity

The installation method of quickly and easily Grouting type, selection of hydraulic anchor block

DWJ type Vibrating string type multipoint below meter by CWJ type Vibrating string type seam measurement meter (below meter) group (3 ~ 6),

Below transmission rod and its protection tube, anti-friction ring, installation support, anchor of the first class