Place of Origin
Guangdong, China
Oiled or Non-oiled
Slightly Oiled
Application
roller shutter door spring steel strip
Certificate
CE, ISO9001, SGS
Processing Service
hardened and tempered
Product Name
roller shutter door spring steel strip
hardness
29-55hrc for hardened tempered, below 19HRC for annealing
Packing
Standard Sea-worthy Packing