Walnut sandwich tastes bitter; Soaking in water has the effects of astringing essence and strengthening kidney, stopping dysentery and diarrhea, stopping leucorrhea and stopping bleeding. Can be used for treating diarrhea, metrorrhagia, leukorrhagia, frequent micturition, enuresis, nocturnal emission, gonorrhea, hematuria and insomnia. In addition, walnut sandwich wood also has the effects of promoting blood circulation, enriching blood and relieving backache and leg pain.

Extended data:

Walnut heartwood is walnut, a thin piece of wood like a butterfly. After peeling, it is sandwiched between two walnuts. Because it is separated from two petals of walnut, it is named loose wood. Walnut chopping is also called walnut core, walnut clip and walnut partition.

The wooden diaphragm is thin, curved, broken and irregular. The surface is light brown to brown, or brown-black, with a slight luster. Fragile and easily broken. Slight breath and bitter taste. It's better to be big, thin and yellow.

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