차원
1.0*40 1.0*45 1.2*50 1.5*50 1.2*60 1.5*60
모델 번호
spring steel strip coil, spring box
신청
rolling shutter door roller shutter window
Steel Grade
c67 c70 c75 SAE1070 SAE1074 SAE1075
hardness of steel
40-55HRC
Standard of surface
No flaw, burr, rust
Edge of steel
mill, slit , round or customized
Product name
Heat treatment steel coil