The higher strength compression Reinforced Solar Hook PD-TRS-09 is design to against the stronger wind load and snow load and it's an adjustable Aluminum PV mounting system. Sandblasting or not can be alternative. Name: SUS304 European Polular Roman Tile Roof Solar Hook  Brand: PandaSolar Item:  PD-TRS-09 Product Origin: Fujian, China Material: SUS304, Warranty: 12years Duration: 25years Shipping Port: XiaMen Port Lead Time: 7-15 days Max Wind Speed: 60m/s Max Snow Load: 1.4kn/㎡ Standard:AS/NZS1170/JISC8955:2017.