Extension for 40 x 40mm rails is a component designed to extend the length of an existing solar mounting rail used in a PV system. These extensions are often used to increase the reach of the rail, allowing solar panels to be installed over a larger area, or to increase flexibility in the design of the mounting system.
                                                                                                                                                    
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                                                                                                                    40*40 Mounting Rail Extension Groove
                                                                                                                    Rail Extension Groove
                                                                                                                    Rail extension for 40*40 Groove Rail
                                                                                                                    Rail Splice for Square Profile Aluminum
                                                                                                                    Extension for 40 x 40mm Square Rails
                                                                                                                    Rail connector for 40*40 Solar Profile