Green Beads and xiang zhu are made of Dalbergia Dalbergia. When maintaining Dalbergia Dalbergia, it is often wiped with cotton cloth, which will be smoother and smoother, more beautiful after long-term friction and lasting fragrance.

The air-dried density of Dalbergia odorifera is 1. 1~ 1.33, and the average value is about 1.25. The wood strength value is high. Drying is extremely slow. In order to prevent cracking during drying, it is necessary to spray paint on the end face, and care should be taken during the whole drying process. Because the wood is extremely hard and the texture is obviously staggered, it is difficult to saw, especially for hand tools. However, better surface finish can be obtained by rotary cutting and molding rotary cutting. Because it contains grease, it should be polished with sandpaper and cleaned with caustic soda solution before gluing, which has high corrosion resistance and insect resistance, and termites and marine insects cannot corrode it. Trees are not tall, wood is oily, self-lubricating and has little wear, so it has irreplaceable uses all over the world as mechanical materials and appliance materials.