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 S/S 12.2 X 16 / L=8MM
FL . BSNG BRZ 12.2 X 15.5 / L=6MM