What does it mean to cut a bed and pull a button?

Pulling cloth is to pull the cloth out layer by layer and pull it from one end to the other. The concept of pulling cloth is laying cloth. According to the floor and cloth drawing length specified in the cutting distribution diagram, the fabric is laid on the cutting machine layer by layer. The ends of the cloth are vertical, the edges of the cloth are aligned with each other, and the fabric should be flat. Tong La just pulled the cloth from one end to the other.