玻璃纤维直接纱或称单股无捻粗纱是由2000孔或4000孔漏板直接拉制而成连续纤维。主要应用用于缠绕、拉挤成型工艺作，适用UP、VE、EP。典型产品为：拉挤杆、窗框、梯子、管道、通讯电缆、贮罐、织造方格布及耐化学性的格栅等。 Direct roving or single-end continuous roving (Pultrusion Roving, Filament Winding Roving, Weaving Roving) , made directly from a 2000 tip bushing or a 4000 tip bushing, is primarily used in filament winding and pultrusion processes in polyester ,vinylester or epoxy resin systems. Typical products are pultruded rod, window frames , ladders, pipe, telecommunication cables, tanks, woven roving and chemical resistant grating. 产品特点：Features 张力均匀，成带性佳 Even Tension，excellent tapability 树脂浸透速度快，相容性优良。 Fast and Complete Wet-out 毛羽少，耐磨性优 No Fuzz，good abrasion resistance 机械性能好