Group 1 - The core viewpoint of the article indicates that Yun Aluminum Co., Ltd. primarily focuses on the domestic market for its aluminum products, with only a small portion of aluminum welding materials being exported to Europe [2] Group 2 - The company has confirmed that the majority of its aluminum products are sold within China, highlighting a strong domestic market presence [2] - The export activities are limited, with only a minor category of products, specifically aluminum welding materials, being sent to European markets [2]

Core Viewpoint - Yun Aluminum Co., Ltd. primarily focuses on the domestic market for its aluminum products, with only a small portion of aluminum welding materials being exported to Europe [2] Company Summary - The company has indicated that the majority of its aluminum products are sold within the domestic market [2] - A limited quantity of aluminum welding materials is exported to Europe, highlighting the company's focus on domestic sales [2]