... OEM & DIY sheet for warning sign PP poster board 1, specifications: SpecificationsPolypropylene corrugated sheet made from prime ... , Display Boards, Exhibition Stall.PackagingMaster Cartons, Packaging for fruits, vegetables, Glass, Delicate items, Chinaware, Lab ... protect324 hours work for your mass production4,detailed or related picture: Corrugated sheet for printing warning sign ...