The advancements in fiber-optic communication technology have created a high demand for custom metal parts that can meet specific design requirements. One such metal that has gained popularity for its excellent mechanical and corrosion resistance properties is SUS304. This high-grade stainless steel is widely used in the manufacturing of custom metal parts for fiber-optic communication. These parts need to meet high precision and durability standards to ensure reliable performance in the communication industry. With a thickness of 1.0mm, SUS304 custom metal parts can be designed to meet specific shape and size requirements, making them an ideal solution for fiber-optic communication applications. In this context, this article aims to explore the features, advantages, and applications of SUS304 custom metal parts for fiber-optic communication.