Shutter spring steel strip
Commonly size posted below for check:
WidthThickness Width ThicknessWidth Thickness
80mm 1.4mm 55mm 1.2mm 45mm 1.2mm
60mm 1.4mm 55mm 1.0mm 45mm 1.0mm
60mm 1.3mm 50mm 1.4mm 40mm 1.4mm
60mm 1.2mm 50mm 1.3mm 40mm 1.2mm
60mm 1.1mm 50mm 1.2mm 40mm 1.0mm
60mm 1.0mm 50mm 1.1mm 30mm 1.0mm
55mm 1.4mm 45mm 1.4mm
55mm 1.3mm 45mm 1.3mm