The wood of Birth is in light brown to red brown, commonly for wood floor, furniture, paper pulp, indoors decoration, equipment for cars and boats and veneer. Its tar is from bark of Birth. Birth beer is from sap, People live in forest usually inflame with wet Red Birch or paper-Birch.
The Birch is one of the most ancient trees in the world. It was created in Glacier Epoch. It can bear cold; grow fast, immunity to bugs. It is a good tree for re-planting forest, to avoid water loss and soil erosion, protesting-cover. It need wet, fertile soil, breeding by aerial seeding or engraft.
The year-circle of Birch is clear, with straight and clear grain. It construction is tight and smooth, and it is soft. The Birch is rich is flexibility, easy to curve or craze when dried. Perform not good in abrasion resistant. With smooth facets, easy be painted or glued. Usually used in carving, but is seldom now. The water-thread (black thread) is its character. Birch is middle class wood, solid wood and veneer are common both. Produced in north-east or east of China, in slight yellow color, easy to be cut. Many figure can be found in root position. In ancient time, people use it as door panel. It bark is soft and beautiful. But its wood is rich in sap, easy to distortion, so people seldom use it in table or chairs. Planted in north earth, with shine surface and smooth inside, with slight yellow color, and thin grain, little heavy and hard, the construction is tight, with good intension. Easy to be eroded, usually used in plywood. Birch is usually used in veneer, furniture. Special good for its smooth, and good grain. |