... Color:white,black,green,blue, ISO,SGS,REACH Corrugated Plastic Tree Guard Corrugated plastic or corriboard - also known as Ron Dennis as well ... also referred to as Twinwall plastic.Pictures of PP Corrugated Plastic Tree Guard : Specifications of Corrugated Plastic Tree Guard : ProductCorrugated Plastic Sheets/Coroplast SheetRaw MaterialVirgin polypropylene ...