Introduction The ASFA304F drawing frame is unifies A272F and the FA304A drawing frame's merit development one economy is suitable the cotton spinning drawing frame, uses in 18-76 mm pure cotton spinning, the short fiber and the fabric blending, half fine spinning and so on many kinds of craft combining with the drafts, enhances the textile fiber long fragment uniformity, unbending and the parallelism, causes the different quality the textile fiber to mix in the cotton sliver hastens evenly, to obtain the good spun yarn creation essential condition.