hollow particleboard,tubular chipboard 1.size:2000*1250*34mm 2.thickness:23mm 3.glue: ... raw materials:hardwood, FIR core,tubularchipboard,honeycomb,laminated fir,MDF board with wood veneer surface. We can make wood doors according ... structure:Rails/Stiles: Finger joint hardwood or softwoodCore: laminated fir, chipboard, tubular chipboard, wood strip, honeycomb, hollow, etc.Door skin: MDF, HDF, or ...