Galvanized Steel Roller Shutter Doors
Steel Roller Shutter Doors are a kind of roll up doors with high-strength and economy price. With such advantages, it becomes one of the most widely used automatic doors, in all kinds of buildings, like warehouse, industrial factory, commercial building, garage or stores.It is made from rust proof galvanized steel sheet. Automatic steel forming machine will bend steel sheet into hook-lock shape. Metal Roller Shutter is very fit for exterior location, like main entrance gates of a factory. Even made in big size, it can resist big wind pressure and work well in a long term. 1. Excellent wind resistance. Steel roller shutter door slat is formed in a cold-processing machine line from original galvanized steel sheet and gradually deformed into lock-lock arc design . The elevation structural strength is enhanced by 80%. Thickness of galvanized steel sheet available: 0.8mm, 1.0mm or 1.2mm. &n…
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