... seam roofing forming machine can produce the staight and tapered standing seam roofings with 300mm,400mm and 500mm The informations ... 500 Standing Seam Roof Forming Machines for Aluminum straight and Tapered Roofing, Roofing Forming Machine, Roofing Machines are as follows ... GP shipping container, and one machine can produce the standing seam roofing 300mm,400mm,500mm, and tapered standing seam ...