400mm metal paper sealer is a durable heat sealing machine designed for sealing plastic bags, laminated pouches, and packaging materials with strong and airtight seals. It features a sturdy metal body for long-lasting performance and a 400mm sealing length suitable for medium to large packaging applications. The machine uses efficient heat sealing technology to provide quick, neat, and secure sealing for shops, supermarkets, food packaging, and industrial use. It is easy to operate, energy efficient, and ideal for sealing polyethylene, polypropylene, and other heat-sealable bags.