Bintangor plywood, Face/Back: Bintangor Core: Poplar, hardwood, pine, MLH,Okume,birch. 1.Bintangor plywood,Commercial ... /18/21/25mm, or as customers' requirements.3)Face/Back: Bintangor, etc.4)Core: Poplar, hardwood, pine, MLH, Okume, birch, Meranti, etc ...