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
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