Wood loose hole material. Heartwood color variation is large, brown, reddish brown to purple black; distinct from sapwood; oily and sexy. The sapwood is nearly white. The growth wheel is not obvious. Tube hole magnifying glass is obvious; scattered; few are small; slightly larger; sediment visible. Axial thin-walled tissue visible under a magnifying glass; ring-shaped tubular and ribbon-shaped. Visible under the wood ray magnifying glass; slightly dense; very narrow. The wave marks are slightly seen. The intercellular tract has not been seen. Detailed explanation of timber species---Brazilian black rosewood Microscopic features The cross section of the catheter is oval and slightly polygonal; single tube hole, a few diameter tube (2~5, rare to 9, most 2~3) and tube hole; scattered; 2 ~7, an average of 4 / mm 2; the maximum chord diameter of 261μm, an average of 149μm; the average length of the catheter molecules is 236μm; some of the conduit contains gum and sediment; thread thickening is not seen. Inter-tubular pore-type inter-column; polygonal, grained mouth containing, a few abduction or confluence, lenticular or linear. Single perforation, perforated plate parallel to slightly inclined. The tube-to-ray pattern is similar to the tube-to-tube pattern. Axial thin-walled tissue scattered-polymerized, banded (1~3 cells wide), rounded, looped and winged; with compartmental crystal cells, containing diamond crystals up to 6 or more; spindle-shaped thin Wall cells are visible; stacked. The wood fiber wall is very thick; the diameter is 20μm, the average fiber length is 1295μm, the single-grain hole is slightly narrow; some of the fiber contains gum; Wood ray 5~10 roots/nun: stacked. Single row rays are 2 to 10 cells high. Multi-row ray width 2 (even 3) cells, 5-10 cells high. The ray tissue is in the same shape as a single column and a multi-column or profiled type III. Erect (rare) or square ray cells are higher than horizontal ray cells; a few cells contain gum; crystals are not seen. The intercellular tract is absent. Cable Seal,Security Seal,Container Seal WENZHOU GCSEAL CO. LTD. , http://www.sealsshipping.com