oil tempered spring steel wire black anneal spring steel wire
 
 
 
 
 
 
Steel grade :FD/VD/TDSiCr FD/VD/TDSiCrV
Standard :AISI, ASTM, BS, DIN, GB, JIS
diameter:0.5mm-15mm
Function:use for clutch and valve
Tensile strength:1370-2160MPA
Supply ability :500Tons Monthly