FA471/472 Three-Shaft Linkage computerized type high speed suspend flyer roving frame adopt the advanced numerical controlling technique, get rid of the cone drum structure、mechanical forming and direction transposition structures of former flyer frames. FA473/FA474 Four-Shaft linkage computerized type high speed suspend flyer roving frame adopt the advanced computer numerical control technique, get rid of the cone drum structure、mechanical forming structure、quick lifting、direction changing configuration and different speed configuration. It makes four main drive parts run independently, and it is controlled by computer numerical control system and servo drive mode. Now it is the most advanced roving frames in mechanical-electronic integration of China. It is suitable for pure or blended processing of combed cotton fiber and artificial fiber.