... 2.High Strength, Tenacity, and Modulus 3.High Corrosion Resistance corrugated fiberglass roof panels Qualifications: SGS, REACH CompliantMaterials: fiberglass,epoxy resin ... : from 2mm to 50mmDiameter: 2mm ~ 50mm & Custom Dimension: customShape: sheet,plate,round, oval, rectangular, triangular and custom shape, like a square ...