1,Intertek certified. 2,Easy and firm installation. 3,Anti-corrosion. 4,10years durability on material. Solar adjustable brackets for flat roof and pitch roofSpecification: Features: 1. Easy Installation: The tilt-in module can be put into the extruded rail from the any location and can be high pre-assembly with the clamp and roof hook to minimize the time and cost of installation. 2. Great ...