rolling shutter spring steel strip,which is made with hardened and tempered ,it is an unique process of heating treatment,thant strengthens steel strips throught controlling the heating and cooling process.which is can be used to increase the toughness of steel strips,the details as:
1)grade with CK67,CK75,C75CR1etc
2)hardness:44-48hrc
3)rouned edge
4)surface with polished-blue or grey-blue
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rolling shutter spring steel strip,the size(thickness&width)
as below
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60 x 1.60
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50 x 1.50
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65 x 1.20
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60 x 1.0
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80 x 1.40
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45 x 1.50
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60 x 1.20
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55 x 1.0
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65 x 1.40
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60 x 1.30
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55 x 1.20
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50 x 1.0
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60 x 1.40
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55 x 1.30
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50 x 1.20
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45 x 1.0
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55 x 1.40
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50 x 1.30
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45 x 1.20
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40 x 1.0
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50 x 1.40
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45 x 1.30
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40 x 1.20
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30 x 1.0
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45 x 1.40
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40 x 1.30
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35 x 1.20
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45x1.1
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40 x 1.40
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1.25x50
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1.25x70
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50x11
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Whatsapp/Mob:+86 13822267321
Mail us：nicole@cgoodsteel.com
Mail us：nicolehuang@gdgwsteel.com
Add：326-328,Ping kang Rd,Sha Xu I,ShiQiaoStreet,PanYu Dist,Gangzhou CHINA ,PS511400
