1.Length: from 5 to 15m. 2. Thickness: from 2.5mm to 5mm 3. Material: S355 for pole and 235 for plate 4.ISO9001:2000 Specifications Length: from 5 to 15m. Thickness: from 2.5mm to 5mm Material: steel SS355,Q235,Q345. Or S355 for pole and 235 for plateSurface: hot-dip-galvanizedSize, style and standard can be adjusted as customer's requirement.Bolts and nuts are through zinc processingCertificate: ...