深夜福利无码极品_最新国模裸体精品视频_精品粉嫩虎白女在线观看_亚洲av无码资源网偷拍

This drawing machine mainly consists of the feeding section, drawing section, slivering section and other auxiliary devices. The guide rollers and press rollers draw the slivers in the given direction from the inlet to slivering platform. The drawing section is divided into drawing device and cleaning device. The drawing device presses the sliver while the cleaning device cleans the dust on the rollers to avoid the impurities drop on the slivers. The slivering section bundles and presses the slivers to stabilize the straightness of the fiber.