PD-TRS-12 is made of  SUS304 applied for Solar Flat Roof Mounting Solution. And the Corrugated Solar Hook top adjustable for flexible mounting. Name: Flat Roof Hook Tile Roof Up Diagram Adjustable Solar Hook  Brand: PandaSolar Item:  PD-TRS-12 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.