The main purpose of this seam is a temporary bond of the product. It is called a running. Smachivanie is mandatory when performing even the most basic products, as it helps to ensure that the work will be neat, and the final connection of the parts is greatly facilitated.
The suture is performed from right to left (figure 25 a). Needle during operation must always be directed forward. The length of the stitches approximately 0.75-1 cm.