1. The system drawings are uploaded to the BOM, a set of standard drawings for a set of products, which is convenient for the unified management of engineers;
2. Each raw material, finished product or semi-finished product can upload its own processing drawings to facilitate purchase and processing;
System format: material code +_1, such as 6005999_1.png, 6005998_1.JPG
3. Material pictures, each material can upload its own real picture of the material, which is convenient for new employees to identify the material;