亚洲人成网7777777国产,国产片AV片永久免费观看,直接观看黄网站免费视频,国产一区二区三区不卡在线观看

The uniform layers from the air pressure hopper are fed into the carding machine; The configuration of double carding not only succeeds in recombining four layers together but also ensure effectively the load of carding which will reduce the damage of fibers and improve the quality of carding and fibrillating.All these will be the guarantee of a stable gram weight so as to enhance the quality and efficiency in the later production.