Material of campus guiding signs

Quick answer：

Campus guiding signs are typically made from durable materials such as aluminum, stainless steel, or high-density polyethylene (HDPE). These materials are chosen for their resistance to weathering, vandal resistance, and ease of cleaning. Aluminum and stainless steel are favored for their sleek appearance and longevity, while HDPE is often used for its cost-effectiveness and impact resistance.