Product Name
rolling door shutter door steel strips C67
material
CK67/CK75/C67S/C75S/C67/C75
Color
blue polished,polished=bright,white,blue,yellow.etc
Techinique
cold rolled,annealed,heat treatment with hardened and tempered
Hardness
44-48hrc
Edge
Rounded,Slitted
Application
band spring,rolling door spring,rolling shutter spring,rolling shuter accessories
package
each bundle with light oil and plastic film then wrapped in anti-rust paper with metallic pallet
