... line and machines2. High-quality raw materials:hardwood, FIR core,tubularchipboard,honeycomb,laminated fir,MDF board with wood veneer surface. We can ... or softwoodCore: laminated fir, chipboard, tubular chipboard, wood strip, honeycomb, hollow, etc.Door skin: MDF, HDF, or plywood+Natural veneer, engineered veneer ...