How do handbag manufacturers measure the relevant length of handbags?

Handbags are a special technical job that requires high precision. According to its raw materials and structural characteristics, handbag manufacturers should pay attention to the following matters when measuring the length:

1. The object to be measured is required to be placed flat on the desktop, and the length of its natural state is measured. It is absolutely not allowed to stretch the actual material, because many handbag materials are flexible. Otherwise, the measured length is longer than the actual one.

2. To measure the distance between two parallel lines, the steel ruler must be perpendicular to the two parallel lines. The starting point of the steel ruler can be fixed on one parallel line, and the other end can be moved on another parallel line. The shortest scale obtained is The distance between two parallel lines, since the vertical line segment is the shortest.

3. The starting point of the ruler should coincide with the line position. If the upper bone pocket cannot see the line position, the starting point should be from the center of the bone, and the end point should be the opposite line position or the center of the bone. (The length of the paper edge is calculated separately)

4. When using a soft tape measure to measure a folded or bent object, the soft tape must be completely coincident with the object being measured, otherwise it will be too long.

5. When reading the length of the object to be measured, the line of sight must be perpendicular to the scale on the ruler. If the line of sight is left or right, the length will be read out longer or shorter than the actual object, resulting in human error.