层进式倍投公式

简介：Golden nanmu, also known as gloomy wood, grows in dense mountains and forests. Its growth cycle is extremely slow. Because of its golden color, it is extremely dazzling under the light. It is as hard as iron and exudes fragrance. It is not invaded by insects and ants. It is buried in The ground does not decay for thousands of years, so it has become one of the most valuable wood species. It is said that every inch of golden nan is equal to an inch of gold.