Specification:Installation site: glazed tile roof Installation angle: parallel to roof 10°-60°Building height: 20 meters Maximum wind speed: 60M/M aximum snow load: 1.4KN/m2Design criteria: according to AS/NZS1170 and other international standards Product material: high strength 6061-T5 and 301 stainless steel aluminum alloy Color: natural color Antiseptic treatment: anodizing and pickling Features:Easy installation, long installation time and cost Have strong strength and high corrosion resistanceCan withstand extreme weather conditions Wide application, can be installed on different types of roofs Package Included:1/3/5pcs x wide photovoltaic support Note:Please allow small size error due to manual measurement. The item color displayed in photos may be showing slightly different on your computer monitor because monitors are not calibrated same.