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Hardened and tempered spring steel strip

It is for rolling shutter doors spring.

Spring steel strip for rolling doors spring advance on his longer lifttime and durable and flexible through hardened and tempered process to achieve certain hardness and toughness

Normally hardness in 45-47hrc.

Size of thick : 0.8mm,1.0mm,1.2mm,1,25mm,1.3mm,1.4mm,1.5mm,1.6mm,1.8mm

Width: 30mm,40mm,45mm,50mm,55mm,60mm,70mm,80mm

Spring steel strip is our production, but as customer requested , we also will help our customer to buy rolling box and manual open lock for garage door with our friend's factory

Rolling box normally providing Nylon and bearing material with OD 200MM,220MM,240MM.

Hardened and tempered spring steel strip