... tube with filament windingMaterialcarbon fiber + epoxy resin, carbon fiber+fibergalss+eposy resinsurface plain woven , twill woven, UD wovenworking processFilament winding, roll-wrappedlengththe ... or matte, flat and smooth,no air bubbles,no holesApplicationbushings, support of ladder,curling shafts,golf shafts Carbon Fiber Tube with Filament Winding