Frame blade made from 18 ga (1.2mm) galvanized sheet.
The blades are mounted on PVC/ Brass bushes and can be
Controlled manually or by a motor actuator.
The movement of the blade permits regulation from fully
Open to complete.
FL . BSNG BRS 12.2 X 16.2 / L=10MM
FL . BSNG BRS 12.7 X 17.0 / L=10MM