Walnut: Walnut belongs to Juglans of Juglandaceae. Together with almonds, cashews and hazelnuts, it is known as the world-famous "four dried fruits". Almond: The seed of Prunus armeniaca or Prunus armeniaca, a deciduous tree plant of Rosaceae. Almonds are divided into sweet almond and bitter almond. Hazelnut: Also known as Castanea mollissima, Castanea acuta or Castanea mollissima, it is a deciduous shrub or small tree of the genus Corylus in betulaceae, with a height of about 1 to 7 meters.

1. Walnut: Walnut belongs to Juglans of Juglandaceae. Together with almonds, cashews and hazelnuts, it is known as the world-famous "four dried fruits".

2. Almond: the seed of apricot or Prunus armeniaca, a deciduous tree plant of Rosaceae. Almonds are divided into sweet almond and bitter almond.

3. Hazelnut: also known as Castanea mollissima, Castanea mollissima or pestle, it is a deciduous shrub or small tree of the genus Corylus in betulaceae, with a height of about 1 to 7 meters.

4. Pine nuts: Pine nuts, also known as pine nuts, fruit pine nuts and sea pine nuts, are the seeds of Pinus koraiensis in Pinaceae and one of the common nuts. Rich in fat, protein, carbohydrates, etc.

5. Pistachio nuts: also known as pistachio, are perennial deciduous fruit trees of Pistachio in Uraciaceae. Wild species originated in the mountainous areas of Central Asia and West Asia, with the earliest cultivation history of 3500 years in West Asia, 2000 years in Central Asia and 0/500 years in Europe.