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Sofa upholstery sewing machines are designed to handle heavy fabrics and intricate stitching patterns that are typical in furniture manufacturing. Unlike standard sewing machines, these machines are built with robust motors and components that can withstand the demands of sewing thick layers of upholstery materials, such as leather, velvet, and heavy-duty canvas. This capability is essential, as sofas often require a combination of different fabrics and padding, necessitating a sewing machine that can perform at a high level without compromising on quality.