State definition for mahogany

A) species: the case of seven five genera: sandalwood, Dalbergia, Diospyros Millettia, chestnut trees, seven categories: red sandalwood, rosewood, black rosewood, rosewood, ebony, striped ebony. Wings of wood

(B) structure: wood structure is very fine to fine, the average conductivity Philharmonic to the diameter below the prescribed value, specific criteria are: Rosewood: average conductivity orchestral diameter not greater than 160μM; rosewood, black rosewood, Rosewood wood, wooden wings: the average conductivity Philharmonic to the diameter of not greater than 200μM; ebony, striped ebony: Average guided the orchestra to the diameter of not greater than 150μM

(C) Density: 12% wood moisture content of each type of air-dry density above a certain value, specifically: Rosewood: air-dry density is greater than 1.00g / cc; rosewood: air-dry density equal to or greater than 0.76g / cm3; black rosewood, red rosewood, ebony, striped ebony: air-dry density equal to or greater than 0.85g / cc; wooden wings: air-dry density equal to or greater than 0.85g / cc

Qualitative of the wood raw material is a science, there is no standard can not, the standard limit is too dead is not conducive to its development, so still need to make some additional instructions:

(A) ebony: such a name for Japan's most popular contemporary Japanese think is the best ebony products. It is understood that in fact is the striped ebony, a small amount of ebony or black wood.

(B): The gall of wood: Ancient Chinese said the tree illness generated burl for gall. General Wood Council of Ministers tumor is not surprising, but a small number of valuable timber, the tumor grow larger, and some even whole trees grow into the empty core, all the nutrients concentrated burl burl internal fibrous tissue changes in the formation of a variety of beautiful patterns, we called it the "gall wood. There are many varieties of gall wood. Such as: the gall of birch, maple gall, cedar gall, pear gall, etc., which pear gall is most valuable. The panel of some masterpieces of classical mahogany furniture is the this galls wood production. Gall wood texture is gorgeous, and should not be deformed and very rare, so it is a very expensive decorative materials.

(C) white wood: the new national standards have been classified as red wood class, no longer broken down.

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