9 points for attention in mechanical drawing bending
When out of the process bending process diagram, bending this step is very good to understand; If you are a novice in bending, you should pay attention to the following points before using the bending machine: 1, distinguish between the first perspective or the third perspective, generally there are symbols in the picture box. The first Angle of view is commonly used in China, according to the law of projection; The third Angle of view is placed on the left… Read More »9 points for attention in mechanical drawing bending