... Widely used for advertising and package PP hollow board / coroplast pp boards / pp corrugated board / pp hollow plastic board1.Specification: (1 ... to be bent and cut, used as transportation box, mailbox, partition, gift boxes, food packing etc. 2) Advertising: With ... PP hollow sheet can be used as advertising board, show board, brand mark, light box board, shopwindow displays, pop-up displays, digital ...