Technical specifications 1. wind load: -wind. (v = 50kg-h) -wind speed (v = 43.66kg-h) -pressure (-0.42kg-m2) 2. structural steel: -plancha; tubes; angles (standard a-36; fy = 2530kg-cm2; standard a307). plant - sections and construction details of polycarbonate metal cover. autocad - dwg.