Product Description

Rolling shutter spring for thickness 0.*5mm*2.5mm, width **0mm, tolerance an flatness according to the DIN standard

1. The hardness is ****5 HRC as per customer requires

2. Finish: Blue, bronze, yellow, gray, etc

3. Edge: One or both edges round square chamfered and beveled

4. Material used for rolling shutter spring

5. Good flatness and uniform hardness

6. Surface treatment: Bright /blue/yellow/grey

7. Edge: Round /slited/milled

8. Cold rolled steel strip

9. Tolerance of thickness: +/*0.*1mm, width: +/*0.1mm

*0. Packing each bundle with anti-rust paper and light oil then wrapped in plastic film or hessians cloth with metallic pallet and put in *0ft or standard sea worthy.