1:Parameters for Custom Metal Curtain Wall Sandwich Panels Steel Outer  LayerCommon T (mm)Outer Panel Specs 1.0(Aluminum Panel)　Inner Panel Specs 0.4-0.6(Coated Steel Panel)Common L (mm)100-4,000Common W (mm)300-1,000CoatingPVDFInsulation CoreCore MaterialHigh-density thermal insulation...