Birch Betula generally refers to about 100 kinds of trees and shrubs commonly known. Single leaf edge serrated or lobed shape, the fruit is a small samara. Birch bark smooth, resinous, white or variegated, with horizontal lenticels go, usually Tasikmalaya flaking into thin slices, thick bark of the trunk with old groove, cracking into irregular fragments. Saplings are short and slender branches on the move, was a narrow pyramid crown. Birch wood light brown to reddish brown, used as flooring, furniture, paper pulp, interior materials, travel equipment, plywood. Hardy, fast-growing, relatively immune to pests, for reforestation, erosion control, protective cover or for conservation of trees. It requires more moist, fertile loam or sandy soil, planting and grafting. Throughout the Northern Hemisphere cold regions.

　　Pine is a coniferous plants (common coniferous plants pine, fir, cedar), it has a pine scent, light yellow color, more boils scar, fast reaction of atmospheric temperature, easily swell, extremely difficult to dry naturally other characteristics , it is subject to manual processing, such as drying, degreasing removing organic compounds, bleach unified tree color, and trees, making it difficult to deformation.

　　1, the use of birch

　　Birch wood light brown to reddish brown, with a smooth surface and a shiny mechanism. Yellow-white slightly brown, ring clear, pure fine wood body, a little heavy and hard, fine structure, high mechanical strength, elasticity, moisture absorption large, dry and easy to crack warp. Not very durable and easy to decay in the environment, more in plywood form. Birch is usually used for special plywood, flooring, furniture, paper pulp, interior materials, travel equipment, plywood. The furniture wear smooth, clear pattern. Now for structural, internal and flowers inlaid fretwork frame production.

　　2, the use of pine

　　Pine wide range of uses, from construction, poles, to furniture, tools have to use. In addition, one or pine pulp and paper to do the main raw material, there are also pine to produce charcoal.

　　And pine trunk in rich pine resin may be used to extract the rosin and turpentine. Pine nuts are also high in protein, which is still bent pine sub medicines.