Pin molds are specifically used to manufacture products in the form of needles or those with needle-like components. Their working principle is to shape and process raw materials such as metals and plastics into finished products through specific cavity designs. In terms of materials, common metal materials include stainless steel and alloy steel. Stainless steel is corrosion-resistant, while alloy steel has high strength. High-end ones may add rare metal elements to enhance performance. They have a low cost and simple manufacturing process. The structural features include precise cavity designs, demoulding mechanisms, and cooling systems for metal pin molds. They are applied in multiple industries such as textile, medical, electronics, and handicrafts. The manufacturing process includes design, processing, and debugging & optimization stages, ensuring the high-quality production of needle-like products.