... .Specification:Type: T27 (Flat), T29 (Convex)Material: Fiberglass fabric impregnated with phenolic resinMetal ring: 1 or 2Layers: 6-13Thickness:2.4 ... ,85mm, 95mm, 107mm, 117mm, 140mm, 170mm,180mmPrices: In accordance with the layers of the backing padsPacking: Each roll is wrapped ... diameters. Boxes are placed on pallets.which are wrapped with plastic films of two or three layers. fiberglass backing ...