FA478 increases the itinerancy pneumatic suction motion, it makes the roving yarn evenness to improve.

FA478还增加了巡回式吹吸风装置，使粗纱条干均匀度明显提高。

youdao

FA478 increases the itinerancy pneumatic suction motion, it makes the roving yarn evenness to improve.

FA478还增加了巡回式吹吸风装置，使粗纱条干均匀度明显提高。

youdao