The basic conditions for manufacturing PP three-layer foam board with good structure. The advantage of recycling is that the inner layer (in contact with food) is suitable for FDA food grade PP materials, the middle layer uses recycled materials for foam, and the outer layer uses printable PP materials. This can save costs.

The office file disk mainly includes wooden file disk and iron file disk. The office file disk is divided into 3 types (1 layer, 2 layers and 3 layers). New and fashionable, unique design, reflecting office science and technology, making file access easy.