1. Durable and sturdy: Metal materials such as stainless steel and aluminum alloy provide the necessary structural strength and load-bearing capacity, ensuring that they do not deform or detach under long-term and frequent use. 2. Aesthetic decoration: As the visual focal point on the glass door, the material, color, and shape of the metal handle play a finishing touch on the overall style, with corresponding choices ranging from minimalist modern to retro luxury. 3.