Generally, mahogany, jujube, pear, ginkgo, ebony, rosewood, Fraxinus mandshurica, camphor, teak, catalpa bungeana, birch, elm, pine and oak are used. These materials are very hard, some of them will be smoother and harder after being used for a long time, and the hairpins are thinner, so hardwood is more suitable.
Beech furniture is mostly Ming style, and its shape and manufacturing technology are basically the same as those of hardwood furniture such as Huang Huali, which has considerable artistic and historical value. Beech wood is heavy, strong, impact resistant, easy to bend under steam, can be made into various shapes, and has good nail holding performance. It is unique to Jiangnan, with clear texture, uniform texture and soft and smooth timbre. It is heavier than most ordinary hardwoods and belongs to the upper-middle level in all wood hardness rankings.