The surface of precision drawing stamping parts does not have the defects of die casting parts. The shape of the stretched part should be simple and symmetrical, the mouth should be allowed to rebound slightly, and the side wall should be allowed to have a technological slope. The wall thickness of the wall part of the cylinder generally has the phenomenon of being thick at the top and thin at the bottom. The shape of precision drawing stampings should be simple and symmetrical, the mouth should be allowed to rebound slightly, and the side wall should be allowed to have a technological slope. The wall thickness of the wall part of the cylinder generally has the phenomenon of being thick at the top and thin at the bottom. Hardware tensile parts processing manufacturers propose to pay attention to the dimensions on the design drawings of the tensile parts. Due to the different stresses on the tensile parts, the thickness of the material after stretching changes. Generally speaking, the center of the bottom maintains the original thickness, the material at the bottom rounded corners becomes thinner, the material at the top near the flange becomes thicker, and the material at the rounded corners around the rectangular stretched piece becomes thicker. Standard method for product dimensions of precision stretched parts: When designing stretched products, the dimensions on the product drawing should clearly indicate that the external dimensions or internal dimensions must be guaranteed, and the internal and external dimensions cannot be marked at the same time. Marking method of drawing part dimensional tolerance: the inner radius of the concave-convex arc of the drawing part and the height dimensional tolerance of the once-formed cylindrical drawing part are the double-sided symmetrical deviation, and the deviation value is the national standard (GB) 16 accuracy standard Half of the difference, and prefixed with ±. Shenzhen Ligao Precision Mould was established in 2015. It is a manufacturing enterprise that produces precision metal stamping products and precision molds. It provides customers with a full range of product mold design, part mold design and product production services. The company has obtained ISO9001: 2015 quality management system certification and strictly implements its requirements. The company's products mainly cover consumer metal stamping parts, metal stamping terminals, automotive small stamping parts, contact shrapnel, precision drawing stamping parts, motor parts stamping parts, motor chips, new energy hardware, automotive connector male and female ends, precision molds and many more. The company insists on taking specialization as the leading factor, providing good products as the goal, and meeting the needs of customers as its mission. Implement the management policy of "seeking expertise in the industry, seeking refinement in products, seeking truth from management, and seeking strength", and win the trust of users with excellent quality and sincere service. The company has high-quality and stable products, reasonable prices, and fast service. We are willing to create a bright future with our new and old customers!