When sourcing stucco embossed sheets, primarily made of aluminum or stainless steel, you must specify the Base Material Grade (e.g., 1050, 1060, or 3003 aluminum alloy for corrosion resistance). The Thickness (Gauge) typically ranges from 0.2mm to 3.0mm, and the Embossing Depth should be consistent to ensure effective light diffusion and surface area increase. Additionally, verify the Temper (e.g., H14, H24) to ensure the material has the correct balance of hardness and flexibility for your specific application.