The spare parts of ships and yachts should not only meet the requirements of functionality, practicality, and quality, but also have unique artistic and aesthetic effects. The stainless steel precision castings that can withstand both "seawater corrosion" and "camera shooting" perfectly reflect this characteristic. Marine connectors, cable bolts, decorative parts, etc. produced by investment casting process are generally made of 304L stainless steel and 316L stainless steel, which enables the product to resist corrosion media (chloride ion corrosion) brought by the ocean. Moreover, the integrated forming process of investment casting can also avoid the hidden danger of intergranular corrosion caused by welding.