sign board 1,thickness:2-10mm 2,width:1600mm 3,material:PP plastic 4,OEM & DIY sign boards 1).light weight. ... /grease proof.5).can be made antistatic,conductive. DescriptionPP Hollow Board / pp sign boardMaterialPPWidth & length (mm)<1600, limitsLimitless (according to your ... .(4) Display (indoor and outdoor)(5) Packaging box.(6) Cushion material, tray, insulate.If you are interested in our PP plastic ...