fiber glass sheet: 1.Low Density 2.High Strength, Tenacity, and Modulus ... . Process: Pultrusion, PulwindingColor: AnyThickness: from 2mm to 50mmDiameter: 2mm ~ 50mm & Custom Dimension: customShape: sheet,plate,round, oval, rectangular, triangular and ... custom shape, like a square concentric with an inner circle, are ...