3x4m greenhouse 1)water proof 2)wind resistant 3)fire resistant 4)UV-resistant 3x4m greenhouse 1)steel tube. pipe size:25x0.8mm,19x0.8mm, (galvanized)2)fabric:PE(UV)180g/m23)weight:42.22/44.54kg4)inner packing:1ctns/set5)Loadability: 580pcs/40ft6) size: 3x4m 3x4m greenhouse