... : Q235 or Q345 Connection: Bolts connection Bracing Material: Angle, round pipe, H-section steel Type: X type or V typePurlin Size ... Type(width): 950mm, 970mm, 1150mm Insulation material: EPS,PU, Rock WooL, Glass Wool Thickness: 50mm-100mmAccessories Semi-transparent skylight beltsVentilatorsDownpipeOuter gutterSurface finish Shot ...