... , Snow load: 0.4KN/M2, Max Tonnage:150/M3/H Single or double roof vents by the rack. Greenhouse Frame details ... Stable structure High intensity Over 90% of light transmissionVenlo structure, Span: 9.6M, 12M, Section: 4M, 4.5M, 5MShading, heating, cooling ... , ecotype restaurant, etc. We supply all the needed equipment for greenhouses such as: thermal screens, shading systems, gears, gear motors, cooling ...