... 4)accessories:plastic strip 1)Garden Greenhouses 2)model:38# 3)material:aluminium alloy frame,polycarbonate,channel steel 4)accessories: plastic ... three carton to packing:1)aluminium alloy frame; 2)polycarbonate; 3)steel channel. we can supply the size from 1330mm ~ ... light, strong, safe, and virtually unbreakable and easy to handle.3), at the bottom with the channel steel can ensure maximum stability ...