Red eucalyptus is a national second-level protected tree species and a special-purpose wood. It is used in shipbuilding because of its hard texture.
Red tree: Red, with no obvious heart and sapwood. The wood is soft, tough, extremely corrosion-resistant, extremely heavy, and has a fine structure. The tube holes are almost invisible. The planed surface is as smooth as a mirror. It is a tree. The best. The gun shafts used in ancient wars were all made of eucalyptus wood. There are records that eucalyptus wood was the best, followed by lotus wood and ash wood.