plywood 1.Face and back: Okume ,Birch,Bintangor, Meranti, 2.Core:Poplar,Hardwood,Birch 3.Size:1220 x 2440mm 4.Grade:BB/CC ... Plywood:1.Face and back: Birch, Oak, Bintangor, Meranti,2.Core: Poplar or combination core 3 ... for stenghthDelivery time: 15 days after your order good quality birch plywood