... Light weight, strong Recylable, durable Eco-friendly 2-10mm thick recyclable pp hollow sheet PP hollow sheet is an twin ... : hollow sheet can be designed to all kinds of shipping box, mailbox, display rack, partition, gift boxes, food packing etc ... .2. Advertising: marking boards, exhibition boards, window displays, light box, digital printing and screen-printing.3. Decoration: partitions, wall cladding ...