1. Determine the types of drawings: There are many types of mechanical drawings, including assembly drawings, sketches, schematic drawings, parts drawings, etc. You must first determine what kind of drawings you have, so that you can know what objects the drawings express, what aspects they express and to what extent.
2. Reading target information: Although the drawings of each person and company will be different, they all follow the national drawing standards. Paintings are for people to see. There are too many special places, and others will lose their meaning if they can't see them. First look at the information such as the name, number, quantity, material (if any), proportion and unit of the object in the title bar (lower right corner). Please refer to the relevant section of the manual for the location of this information.