Product DescriptionFeatures of Rolling Shutter Spring : 1. The hardness is 30-55 HRC as per customer requires 2. Finish: Bule, bronze, yellow, gray, etc 3. Edge: One or both edges round square chamfered and beveled 4. Good flatness and uniform hardness 5. Surface treatment: Bright /blue/yellow/grey 6. Edge: Round /sil
Product NameSteel
Steel TypeCarbon Steel
Steel Product TypeSteel Strips
GradeCK45 CK50 CK55 CK60 CK67 CK70 CK75 CK80 CK95 51CrV4
Thickness0.10-4.0 Millimeter (mm)
Steel StandardDIN
Surface TreatmentOther
UsageROLLER SHUTTER
AlloyYES
Product TypeSteel
GradeCUSTOMIZED
ShapeOther
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