PP (polypropylene) injection-molded caps are widely used in various fields such as cosmetics, food, and home appliances, mainly due to their lightweight, heat resistance, and chemical resistance. These properties make them ideal for packaging products that require durability and safety. In the cosmetics industry, PP caps are preferred for their ability to withstand frequent handling without deforming, ensuring that high-end beauty products maintain their integrity. For the food sector, PP caps provide excellent barrier properties against moisture and chemicals, which is crucial for preserving the freshness and safety of packaged goods. In home appliances, PP caps are often used in components that need to endure varying temperatures and resist wear and tear, contributing to the longevity and reliability of household items. Additionally, the recyclability of polypropylene aligns with global sustainability efforts, making it an environmentally conscious choice for manufacturers across different industries.