Catalpa wood, northeast region known as the harlequin Glorybower, advocate produce the Yellow River to the Yangtze River Basin, wide distribution, large output, good quality, is our country all previous dynasties timber wood species is one of the most widely produced, but also for wood. Its hardness is between wood and cork, light material and resistant to decay, grain and beautiful lustrous; not cracking, not expansion, surface smooth, corrosion resistance strong, very suitable for carving, mold, planing, cutting, use do furniture for all kinds of desks, cabinets, racks and carved baffle, teeth and other wood decorative part; the ancient emperors, the queen was buried with the coffin is dedicated to do. In addition, Azusaki or fetal lacquer wood engraving lettering, instruments and materials.