In the journey of product development, prototypes, rapid molds, and steel molds are the three essential tools for designers and engineers. They not only bear the responsibility of verifying designs and optimizing functions but also directly relate to the final production efficiency and quality of products. Today, let us delve into the mysteries of these three, exploring their definitions, primary applications, manufacturing processes, and respective advantages and disadvantages.

Sink marks in injection molded products often occur due to insufficient force during molding, inadequate material filling, and unreasonable plastic product design. These sink marks frequently appear in thick-walled sections.