Hollow Section Pre-galvanized Square Tube GI Pipe Solar Photovoltaic Stents Mount Structure As the main structure of the pv mounting system,the galvnized steel are made by good quality Q235B and Q345B.The performance of load-bearing,wind resistance and seismic resistance has been given sufficient consideration,which will ensure the safety of the system. We adopt advanced galvanized technology, make the appearance of beautiful, has the property of anti corrosivewear-resisting