Stres Yaratan Yaam Olaylarnn Vitiligo ve Kronik rtiker Hastalarna Etkisi

A particle board having wooden materials coated with an adhesive of a thermosetting resin and pressurized with being heated includes a core layer and face layers provided on both, front and back, sides of the core layer. The wooden materials of the face layer are smaller in the average particle diameter than the wooden material of the core layer and voids between the adjacent wooden materials in the face layer and the core layer are filled with resin particles of a thermoplastic resin by being pressurized with being heated.