cottom造句

Controling air bubble film or epe pearl cotton film making-bag machine with servo, easy adjusting and high working efficiency . if this machine adds new function, it can produce epe pearl cottom plastic bag under
本机由数控伺服电机控制调整简单，生产效率高该机增加功能后，适用于生产厚度为
It's difficult to see cottom in a sentence. 用cottom造句挺难的