2. Pictures or photographs refer to six orthographic views (front view, back view, left view, right view, top view and bottom view) and three-dimensional views of the design product. If there is no design point on the view, it can be omitted; If the views are symmetrical, you can omit one view. The view scale in the above pictures or photos should be consistent, and the size of the pictures or photos should be between 3cm×8cm and 15cm×22cm, 300dp；;
3. The background of the picture or photograph shall be monochrome, and there shall be no other articles or patterns irrelevant to this design. At the same time, the photo must be free from strong light, shadows and other factors that affect the image effect. (For designs that need color protection, a color and a black-and-white picture or photo should be submitted at the same time. )
4, the view requires the same scale; (For electronic application, six drawings cannot be integrated on one piece of paper, but should be separated. See example for details);
5. Drawings should be drawn according to the national standards of technical drawing and mechanical drawing, and it is best to use AUTOCAD software. When making by hand, drawing tools and black ink should be used;
6. The figure shows the external outline, excluding the center line, dimension line, shadow line, indicator line and dotted line.