Made of aluminium alloy for excellent corrosion resistance. 
                                     
                                     
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                                    Equipped with neoprene under-head gasket to make the fastening waterproof. 
                                     
                                     
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                                    With 3 large wings, ti ensure excellent clamping force even on curved surfaces. 
                                     
                                     
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                                    They do not destroy or damage the surface, even on soft, thin or fragile materials. 
                                     
                                     
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