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Handbags out of line is a special technical work requiring high precision. According to its raw materials and structural characteristics, handbag manufacturers should pay attention to the following matters when measuring the length:
First, the measured object is required to be placed on the table, the length of its natural state is measured, and the physical material is absolutely not allowed to stretch, because many raw materials of the handbag are flexible. Otherwise, the measured length is longer than the actual length. To measure the distance between the two parallel lines, the steel rule must be perpendicular to the two parallel lines, so that the starting end of the steel rule is fixed on a parallel line, the other end of the tooth on another parallel line, the shortest scale obtained is the distance between the two parallel lines, because the vertical line section is the shortest.
Three, the starting point of the ruler should coincide with the line position, if the bone pocket, can not see the line position, the starting point from the bone center, the end to the opposite line or bone center shall prevail. (The length of the paper mouth is also counted)
Four, when using a soft tape measure to fold or bend, the soft tape measure must be completely coincided with the measured object, otherwise it will be too long.
When reading the length of the measured object, the line of sight must be perpendicular to the scale on the ruler, if the line of sight is left or right, it will read the length that is longer or shorter than the actual object, causing human error.
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