Place of Origin
Jiangxi, China
Standard
AiSi, ASTM, BSI, DIN, GB, JIS
Surface Treatment
Polished
Application
Roller shutter door spring steel
Model Number
Springs steel strip
Width
30mm, 40mm, 45mm, 50mm, 60mm, 70mm, 80mm
Processing Service
Bending, Welding, Cutting
Type
Other Door & Window Accessories
Steel Grade
C67, C75, C80,SAE1070, SAE1074, SAE1075
hardness of steel
42-48HRC
Standard of surface
No flaw, burr, rust
Edge of steel
mill, slit , round or customized
Product name
Rolling shutter spring steel