Group 1: Smart Wearable Technology - A stylish smart temperature-controlled down jacket was showcased at the 7th China International New Materials Industry Expo, capable of heating up in 2 seconds and featuring four temperature settings [1] - The core technology of the jacket is based on a two-dimensional material that offers high electrical conductivity, stability, and processability, along with precise temperature control through smart algorithms [1] - The company, Harbin Yunjing Technology Co., Ltd., focuses on applying new energy and new material technologies in smart wearable products, including low-pressure rapid heating systems and smart fabrics [1] Group 2: Eco-friendly Materials - An eco-friendly bag made from plant fiber biodegradable materials was presented, capable of holding over 10 kilograms, demonstrating its strength and durability [3] - The biodegradable material used for the bag is advantageous due to its full biodegradability, low cost, and the ability to avoid "white pollution" caused by traditional plastic products [3] - The company, Heilongjiang Jinying Nafu Biotechnology Co., Ltd., specializes in producing fully biodegradable materials for various applications, including packaging and agricultural films [3] Group 3: Aluminum Materials in Automotive Industry - China Aluminum Corporation showcased an all-aluminum car body model, highlighting the advantages of aluminum alloy automotive panels, such as higher strength, lighter weight, and ease of forming [5] - The aluminum materials produced by the company have reached international advanced levels, with certifications from over 25 major manufacturers for more than 90 vehicle models [5] - The company aims to achieve a sales target of 320,000 tons in 2024, leading the domestic market share in aluminum automotive materials [5]