Yunnan imported high quality hard material identification and utilization

Regarding the identification and utilization of imported materials in Yunnan, continuous reports have been made in the past. The 10 types of high-quality hardwoods that have not been reported recently have been introduced for reference.

1 Multi-leaf Milan Aglaia multifoliola Merr commonly known as shovel

Product name: Kansulud (Philippines)

Trees and distribution: Meliacea evergreen trees, producing in the Philippines, Malaysia, Indonesia and other places. There are about 250 species of this genus, producing tropical and subtropical regions of Asia and Oceania. About 12 species are produced in China. There are four species in Yunnan.

Wood identification and utilization: Wood is a loose hole material. The difference between the heart and the sapwood is slightly obvious; the heartwood is light reddish brown, the color of the wood is darkened by the time; the sapwood is light yellowish brown. The growth wheel is not obvious to a slight extent, the width is slightly uniform (3-8 mm), and the dark fiber band is interposed between the wheels. The tube holes are visible under the naked eye, and the tube holes (2-5, most 2-3) are separated and (short) diameter, and the tube holes are thin. The number is slightly less than slightly; medium to slightly larger; the size is slightly uniform, the distribution is quite uniform; scattered or slightly oblique; with white or pale yellow sediment, and contains brown gum. The tube hole groove is obvious on the longitudinal section. The thin-walled structures of the shaft are slightly more, and the magnifying glass is clear. The main body is wing-shaped and poly-winged, and the loop tube is bundled and rounded, and the sparse stars are scattered. The wood ray is non-stacked; it is very fine to slightly fine; it is thin to medium; it is clear only under the magnifying glass; the light-cut surface of the cut surface can be seen with a slight light brown wavy band-shaped ray pattern, and the fine-grained light pattern can be seen under the magnifying glass on the string cutting surface. . The wave marks are absent. The intercellular tract has not been seen.

Wood has luster; no special smell and taste; texture is straight or oblique, the surface texture is staggered; the structure is fine to medium, uniform; medium weight and hardness (air dry density 0.65-0.75g/cm3); dry shrinkage, dry size Stable, good paint and processing properties. It is used for high-quality hard and hardwood, and is generally used for medium and high-grade furniture, shipbuilding, vehicles, doors, windows and interior decoration, floorboards, veneers and plywood.

2 Gemu Erythophloeum fordii Oliv commonly known as rosewood

Product name: Lim, lim xank (越)

Trees and distribution: Leguminosae, an evergreen tree, is produced in Vietnam, Laos and China. There are about 17 species of this genus, distributed in Asia, eastern Africa and the tropical regions of Oceania.

Wood identification and utilization: Wood is a loose hole material. The difference between the heart and the sapwood is obvious; the sapwood is yellowish brown; the heartwood is reddish brown to dark reddish brown and yellowish. The growth wheel is obvious, the width is slightly uniform (3-5Inm), and the dark fiber band is interposed between the wheels. The tube hole is obvious under the naked eye, and the tube hole is separated by single and short diameter (2 - 3, thin 4); the number is less to slightly less; the medium to slightly larger, the size is inconsistent, the distribution is less uniform, 3 scattered or oblique; The tube hole often contains brown gum. The tube hole groove on the longitudinal section is sparse and obvious. The amount of axial thin-walled tissue is large and visible under the naked eye; wing-shaped, poly-winged short band and thin wheel boundary. Wood ray is non-stacked, often arranged in a diagonal column, clear under a magnifying glass; thin to medium; very fine to slightly thinner, much smaller than the smallest tube hole; very fine ray markings on the diameter cutting surface. Wave marks are visible under the naked eye. The intercellular tract has not been seen.

The wood has strong luster; no special smell and taste; the surface texture is staggered, with strips of width and width ranging from narrow to medium, the structure is fine to medium and uniform; the material is hard (air dry density 0.85-0.95g/cm3); strength High, strong corrosion resistance; one of the imported high quality hardwoods. Suitable for construction (interior decoration, flooring), shipbuilding (fishing), bridges, sleepers, etc. In the Kunming wood market, it is generally used as high-grade furniture (pretending to be mahogany furniture), high-grade flooring and interior decoration (high-end hotel wall panels).

3 Dense wood E.densiflorum (Elm.) Merr

Product name: Kamatog (Philippines); Miamot (Sabah)

Trees and distribution: leguminous evergreen trees. Produced in the Philippines, Indonesia, Papua New Guinea and other places.

Wood identification and utilization: Wood is a loose hole material. The difference between the heart and the sapwood is obvious; the sapwood is yellowish brown, and the heartwood is reddish brown to dark reddish brown. The growth wheel is slightly visible under the naked eye, the width of the main is slightly uniform (3-6mm), and the wheel is interspersed with a dark fiber band. Tube holes can be seen under the naked eye, separate and short diameter columns (2-3), thin tube pores; few to slightly less; slightly smaller to medium; slightly uniform size, uneven distribution; scattered or slightly Oblique column; some heartwood tube holes contain brown gum. The tube hole groove is obvious on the longitudinal section. The axial thin-walled tissue is slightly more, slightly seen under the naked eye, clear under the magnifying glass, wing-shaped, poly-winged and wheel-shaped. Wood ray stacked; thin to medium; very fine to fine, clear under the magnifying glass, much smaller than the smallest tube hole, there are very fine ray spots on the diameter section. The waves are visible. The intercellular tract has not been seen.

The wood has luster; no special smell and taste; the surface texture is staggered, with wide strips; the structure is fine to medium, uniform; the material is hard (air dry density 0/75-0.85g/cm3); high strength; Strong corrosion resistance; one of the high quality hardwoods. Applicable to high-grade furniture, instrument box, engraving and art crafts, etc.

4 Iron wire Mhanilkara Kauki Dub, also known as Ke Orange

Trade name: Sauh Ketjik, Sawokecik (Indonesia); Sawai (Myan); Sawah (Ma); Kating (Thai)

Trees and distribution: Evergreen trees of the Sapotaceae family. Produced in Indonesia, Myanmar, the Philippines, Malaysia, India, Thailand, Cambodia, Vietnam, Laos and other places.

Wood identification and utilization: wood is a loose hole material, the heart and sapwood are clearly distinguished; the heartwood is light reddish brown to dark reddish brown; the sapwood is narrow (2.5cm), light yellowish brown. The growth wheel is not obvious, it is only visible under the naked eye, and the late material is slightly darker. The tube hole is extremely fine white spots under the naked eye, clear under the magnifying glass; slightly less to slightly more; very small to slightly smaller; separate and short diameter columns (2-5, most 2-4), a few Tube hole chain, thin tube hole group; diameter column; with invading body. Very fine tube holes are visible to the naked eye in the longitudinal section. The axial thin-walled structure is faintly visible under the magnifying glass, and is strip-shaped from the tube, and has irregular intermittent short strings. The wood ray is non-stacked and visible under the naked eye. It is clear under the magnifying glass; slightly dense to dense; very fine to slightly thin, the thicker is smaller than the largest tube hole chord; the microscopic ray markings are visible to the naked eye. The wave marks are absent. The intercellular tract has not been seen.

The wood has luster; no special smell; the taste is slightly bitter; the texture is straight or slightly staggered; the structure is very fine and uniform; the material is hard (the air dry density is 0.90g/cm3), and the corrosion resistance is strong. Suitable for superior furniture, instrument box, construction (pillars, sills, floors, interior decoration), workers and peas, handles, carving, turning, stationery, arts and crafts, etc. There are about 70 species of this genus in the tropics, mostly high-quality hard materials. Yunnan currently only imports this kind.

5 Lloyd's Mangosteen Garcinia loureiri Pierre, also known as Lloyd's Garcinia

Product name: Bua (越越)

Trees and distribution: Cuttiferae evergreen trees, produced in Vietnam, Laos, Thailand, Cambodia and other places. There are about 400 species of plants in the world, distributed in the old mainland, about 12 species in China, producing south China and southwest hotspots. Yunnan imports the following three kinds, and is collectively referred to as imported hardwood in the timber market.

Wood identification and utilization: wood is a loose hole material, heart and sapwood are indistinguishable; the material color is yellowish brown; the growth wheel is not obvious. Tube holes are not visible under the naked eye, clear under the magnifying glass; separate and short diameter columns (2-3); few are at least; very small to slightly smaller, slightly uniform in size, extremely unevenly distributed, some parts are not seen Tube hole. The tube hole groove on the longitudinal section is not obvious. The amount of axial thin-walled tissue is large, and it is not visible under the naked eye. It is clear under the magnifying glass and has a dense fistula band shape. The wood ray is non-stacked and visible only under the magnifying glass; slightly dense to dense; very fine to slightly fine; the spacing is slightly uniform, narrower than the thin-walled tissue, and intertwined with it into an irregular network. The wave marks are absent. There is no brain between the brains.

Wood has luster; no special smell, slightly bitter taste; texture straight or oblique, track mask interlaced texture; material is very hard (air dry density 0.85-0.95g/cm3); high strength; difficult to process; slow drying, easy to crack ; strong corrosion resistance. It is generally used as hardwood furniture, floorboards, daily necessities (especially hardwood sheets), workers and peas, etc. It can also be used for shipbuilding, bridges, stands, docks and buildings.

6 Big leaf mangosteen G.xanthochgmus Hook.f.ex.T.Anders

Trees and distribution: Evergreen trees, producing in Vietnam, Laos, Cambodia, Myanmar, Thailand and other places. China's Guangxi and Yunnan hotspots are also produced.

Wood identification and utilization: Wood is a loose hole material. The color of the material is yellow and brown, and there is no difference in heartwood. The growth wheel is not obvious. The tube holes are slightly visible under the naked eye; the number is very small at least; slightly smaller to medium; the size is slightly uniform, the distribution is not uniform; the yellow sediment is contained; the invader is not seen. The tube hole groove on the longitudinal section is slightly obvious. The amount of axial thin-walled tissue is large and visible to the naked eye; wing-like, poly-winged and sacral tube-like. Wood ray is non-stacked; slightly dense to dense; very fine to slightly finer; slightly smaller than the tube hole chord; very fine ray markings on the radial section. The wave marks are absent. The intercellular tract has not been seen.

The wood is shiny; there is no special smell, the taste is slightly bitter, and the material is hard and heavy (air dry density o.955g/m3). The use is similar to the former. However, the bark, branches and leaves are rich in yellow gum-like sap, and the villagers cut off the dried yellow beeswax, which is the natural yellow dye (garcinia), which is a paint for tigers and medicinal. Toxic, not to eat. Kunming is used as a chopping board for chopping vegetables. It is recommended to import hardwood chopped sticks. It is best to use salt water (or water) for several times (for several days) before use to remove it from yellow sap.

7 Aromatic mangosteen G.fragraeoides A.Chev is also known as fragrant yellow

Product name: Trai ly (越)

Trees and distribution: evergreen trees. Produced in Vietnam, Laos, Cambodia and other places.

Wood identification and utilization: Wood is a loose hole material. The difference between heart and sapwood is slightly obvious; the heartwood is dark yellow; the sapwood is light; the growth wheel is not obvious. The tube hole is clear under the magnifying glass; the individual tube and the diameter of the tube (2-5, most 2-3), the thin tube group; the number is slightly less to slightly more; very small to slightly smaller; scattered. The tube hole groove on the longitudinal section is not obvious. The amount of axial thin-walled tissue is large, visible to the naked eye, and banded in the fistula. Wood ray is non-stacked; clear under a magnifying glass; medium to slightly dense; very fine to slightly fine; very fine ray markings on the radial section. The wave marks are absent. The intercellular tract has not been seen.

The wood is lustrous; there is no special smell, the taste is slightly bitter; the texture is straight or oblique; the structure is fine and uniform; the material is very hard (air dry density 0.95-1.05g/cm3). The use is similar to the former.

8 Mountain red thick shell Calophyllum montanum Viell vulgar

Product name: Cong (越越)

Trees and distribution: Garcinia Cambogia evergreen trees. Produced in Vietnam, Laos, Cambodia and other places. There are about 80 species of this genus, distributed in the eastern hemisphere tropical region. Three species are produced in China and one species is produced in Yunnan.

Wood identification and utilization: Wood is a loose hole material. The difference between the heart and the sapwood is slightly obvious; the heartwood is dark reddish brown; the sapwood is grayish reddish brown. The growth wheel is not obvious. The tube hole is visible under the naked eye, the magnifying glass is clear, most of them are alone, a few short-diameter columns (2-3), the tube hole group is not seen; the number is less to slightly less; slightly smaller to medium; the size is quite consistent, distribution Slightly uniform; oblique or radial; the heartwood tube is rich in brown gum. The tube hole groove on the longitudinal section is thin and obvious. The axial thin-walled structure is only visible under the magnifying glass, and is distributed in a sparse and intermittent strip shape and a loop bundle. Wood ray is non-stacked; very fine to slightly fine; medium to slightly dense; visible only under a magnifying glass. Wave marks and intercellular channels are absent.

The wood is lustrous; there is no special smell and taste; the texture is staggered; the structure is fine and uniform; the material is hard (the air dry density is 0.75-0.85g/cm3). Suitable for high-grade furniture (pretending mahogany furniture), instrument box, engraving, turning, art craft products, building components, high-grade flooring, interior decoration, shipbuilding (fishing wheel), agricultural tools and workers and peas.

9 Vietnamese hard-boiled Pentace tonkinensis A.Chev commonly known as beautiful wood

Product name: Nghien (Vietname); Trasiet, Sisiet (Cambodia)

Trees and distribution: Tiliace evergreen trees. Produced in Vietnam, Cambodia, Laos and other places.

Wood identification and utilization: wood is a loose hole material; the difference between heart and sapwood is slightly obvious to the obvious, the heartwood is reddish brown, and the sapwood is yellowish white. The growth wheel is not obvious to a slight extent, and the width is slightly uniform (3-5 mm). Tube holes are visible under the naked eye; separate and short diameter columns (2-5, most 2-3); slightly less to slightly more; slightly smaller to medium; quite uniform size, slightly even distribution; rich in brown gum And a small amount of white sediment; scattered or slightly oblique. The amount of axial thin-walled tissue is small, visible only under the magnifying glass, and the ring-shaped tubular and band-shaped thin strings. Wood ray stacks, visible under the magnifying glass; very fine to very fine; medium to slightly dense; very fine ray markings on the diameter section. The wave marks on the string cut surface are obvious. The intercellular tract is absent.

The wood has luster; no special smell and taste; the texture is staggered; the structure is fine to very fine, uniform; the material is very hard and heavy (air dry density 0.95-1.05g/cm3) strong corrosion resistance; high strength. Applicable to shipbuilding, machine seat cushions, room pillars, sleepers, planers, various workers and peas handles, high-grade furniture, sculpture, art craft, high-grade flooring, and other shock-resistant and wear-resistant components.

Another type of Burmese hard palate P.burmanica Kurz has a pale yellowish brown to pale reddish brown color with medium weight (hardness density of 0.69g/cm3) and a similar use.

10 American White Stork Quercus alba L

Product name: white oak

Trees and distribution: deciduous trees of the family Fagaceae. Produced in the southern United States, the South Atlantic and Central States.

Wood identification and utilization: Wood is a ring hole material. The difference between heart and sapwood is not obvious to slightly obvious; the sapwood is white to grayish white; the heartwood is taupe, the growth wheel is obvious, and the width is slightly uniform (3-5mm). The early tube holes are slightly larger, a few are very large, clear under the naked eye, and are continuously arranged into an early material belt, with a bandwidth of 2-4 tube holes; the heart tube hole often has an invading body; the early material to the late material is rapidly changing. The tube hole of the late material is very small to slightly smaller, visible to the clear under the magnifying glass, sparsely arranged in a flame-like diameter, and the bandwidth is 1-2 tube holes. In the longitudinal section (the early tube hole is very obvious. The amount of axial thin-walled tissue is large, clear under the magnifying glass, the main is star-dispersion - polymerization and separation band (arranged into dense string) and ring tube. Two types of width and narrowness:

1 Narrow wood ray is only visible under the magnifying glass; slightly dense to dense; very fine to very fine; very fine ray markings are visible to the naked eye on the radial section;

2 wide wood ray width to slightly wider, spindle shape on the chord, height 5-20mm, the ray pattern on the diameter section is sparse and obvious, and the shape is extremely irregular. Wave marks and intercellular channels are absent.

The wood is lustrous, the dry material has no special odor and taste; the texture is straight; the structure is thick, uniform, hard and heavy to medium to slightly hard (air dry density 0.65-0.75g/cm3). Suitable for construction (interior decoration, flooring), vehicles, shipbuilding, bridges, sleepers, pit wood, wine cellars, agricultural tools, industrial and agricultural handles, wooden frames, fences, sports equipment, hardwood furniture, etc. It is used as a floorboard in the Kunming wood market.

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