<p>➀ The 14th China International Nanotechnology Industry Expo concluded successfully, showcasing advancements in nanotechnology.</p><p>➁ PuLing Technology, a leading nanoprinting company, offers a range of products and services for various industries.</p><p>➂ Nanoprinting technology has distinct advantages over photolithography in terms of precision and cost, but challenges remain in high-precision applications.</p>