... of individual fibers from the bushing without twist. Direct Roving for Filament Winding, pultursion , Weaving is an E-glass ... unsaturated polyster, epoxy, vinylester and phenolic resins. Direct roving for Filament Winding, pultrusion, weaving specially used to produce GRP FRP pipes, ... rovings, boats and chemcal storage tanks, with filament winding, pultrusion and weaving process. Gypsum Roving