特殊用法chopped roving1.短切无捻粗纱direct-drawn roving1.直接(法)无捻粗纱directly-wound roving1.直接卷绕的无捻粗纱double roving1.双粗纱preform roving1.预成形(用)粗纱woven roving1.(玻璃纤维)方格布, 粗格布, 无捻粗纱布