Fill in according to the contents in brackets, XXX 1 is the material.

XXXX2 is the name of the company, that is, your company, school and other units.

? XXXXXX33 is a pattern, that is, what is this picture you drew, such as? transmission shaft

? XXXXXXXX 44 is the drawing number, which is the number of this drawing for future reference. This is usually the name given by the company.

? Write your name and date on the back of the design.

Audit, process? The approval category is countersigned by leaders.

How many partitions are marked? The change of file number refers to the marks directly modified on the drawings after the drawings are printed, such as the diameter you modify, and the marks on the drawings should be done well and changed in several places.