... 4.light weight,durable,waterpro 5.corona Export to USA:10mm coroplast with corona treatment is made of melted Polypropylene, It has ... display rack, partition, gift boxes, food packing etc. 2. Advertising: coroplast sign board, shopwindow displays, pop-up displays, exhibition boards, picture ... gift pack.About uswe have main three machine to produce sheet,and other machine can make different box or other ...