Usage:Outdoor Grade:First-Class Main Material:Poplar Formaldehyde Emission Standards:E1 Plywood Type:3-18 plys Board Face and back:black brown red film Glue:Mr melamine and wbp Thickness:9mm 12mm 15mm 18mm 21mm Material:poplar hardwood finger joint Certificate:FSC F17 use time:more than 15 times Name:film faced plywood