roller Shutter spring steel strip
- material: 65mnn c50
- size: 0. 7-1. 5mm thick x 40-80mm wide x 3-6meter long
- finish: blue, black, bright, yellow, hardened and tepered, smooth edge, hrc45-48
- packing: oiled, plastic film, carton
- application: spring for shutter door
- moq: 5m. Ton
- delivery time: 30days upon receipt of your deposit