Global Sandwich Maker Market Size, Share & Demand Report By Product Type (Four-Triangle Sandwich Makers, Panini-Press Sandwich Makers, Multi-Function Sandwich Makers, Portable/Compact Models, Commercial Sandwich Makers), By Plate Material (Non-Stick, Ceramic, Stainless Steel, Hybrid), By End-Use (Residential, Commercial), By Price Range, By Distribution Channel, By Region & Segment Forecasts, 2025–2030