Dear Sir Madam, Item:High Peak Tent Gazebo Tents Frame material:Aluminum alloy Surface treat method of steel:Hot galvanized; Thickness over 6 Flame retardant:European Standard DIN4102 B1 M2 Wind loading:100Km h Color:White Transparent Black or white Warranty:15 Years Application:Exhibition Certificates:ISO 9001:2008 SGS TUV BV IFAI