pp hollow sheet(polypropylene corrugated board) is a kind of material with features of invironmental, ... noxious free,recycled,ligh pp hollow sheet(polypropylene corrugated board)Specification:thickness:2mm-7mm,width*length:1220mm*2440mm or ... client's requestcolor:any colorCharacteritics:pp hollow sheet(polypropylene corrugated board) is a kind of material with features of invironmental, ...