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In the field of materials science, American sex dolls have long been at the forefront of the industry. The latest generation of full size sex dolls utilize medical-grade platinum silicone and thermoplastic elastomers, offering unprecedented realism and durability. These material innovations have enabled American sex dolls to maintain a competitive edge in the high-end market, but patent protection also faces challenges. Asian manufacturers are developing alternative materials that achieve similar performance at lower costs, threatening the technological advantage of American companies. Meanwhile, the development of environmentally friendly materials has become a new trend, with European companies leading the way in biodegradable materials. The American sex doll industry needs to increase its investment in material R&D or risk losing this key competitive advantage.