the connection point of two rail sections. rail splice tighten with nuts connecting two rail sections. rail for supporting solar p

metal hex technology ceiling spliced continuously connection supporting light panels continual installing strong aluminium glass nuts rail torque line solar background wing lighting connecting flooring furniture track sheet window assembly joint tighten tight wall wood screw floor compress compression aluminum connect room engineering engineer roof outdoor photovoltaic hexagon point sections worker clip handrail two design iron lock construction splice nut