There are two angles (α and β) when the spring is put onside the profile . When the winder acts on the film, the force is transferred to the spring, according to the force theory, if α less than β,the profile will lpck the spring and the spring will move downwards; if α greater than β, the spring will move upwards. When the wind-resist SK profile is used with the spring, as α less tha β, the more wind loading, the more of force to go downwards. It is hard to collapse. On the contray, for the common profile and U shape profile, α greater than β, so the more wind loading, the more force to go upwards. It is hard to cpllapse.
No.
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Material
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Style
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Size
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Available thickness
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Available length
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|||
W × H (mm)
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mm
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mm
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||||||
1
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Aluminum Alloy
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single or double
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130mm×11mm
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0.6mm,0.7mm,0.8mm,1.0mm
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Standard: 4m, 6m
|
|||
2
|
Powder coating steel sheet
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Square channel
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130mm × 15mm
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0.5mm,0.6mm,0.7mm,0.8mm
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Standard: 4m, 6m
|
|||
3
|
double layers
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130mm × 11mm
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0.5mm,0.6mm,0.7mm,0.8mm
|
Standard: 4m, 6m
|
||||
4
|
single layer
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130mm × 11mm
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0.5mm,0.6mm,0.7mm,0.8mm
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Standard: 4m, 6m
|
||||
5
|
Galvanized steel sheet
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Square channel
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130mm × 15mm
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0.5mm ~ 0.8mm
|
Standard: 4m, 6m
|
|||
6
|
double layers
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130mm × 11mm
|
0.5mm ~ 0.8mm
|
Standard: 4m, 6m
|
||||
7
|
single layer
|
126mm × 10mm
|
0.5mm ~ 0.8mm
|
Standard: 4m, 6m
|
||||
8
|
Galvanized steel sheet
|
Connector of lock channel
|
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