Birch plywood reduces the use of liquid glue and lowers the release of harmful substances such as formaldehyde during the production process. High quality birch plywood strictly controls the content of harmful substances to ensure that the product meets environmental standards and is harmless to human health. The production of multi-layer boards can more effectively utilize wood resources and reduce waste. By interlocking multiple layers of thin wooden boards, not only has the utilization rate of wood been improved, but the dependence on primitive forests has also been reduced.