Pine nuts produced by Xiaoxing 'anling, a specialty of Northeast China, are the most authentic, uniform in size and bright in color. On the surface, the opening of regular manufacturers is uneven, while the opening of irregular manufacturers is uneven, but the opening is even and long. In terms of taste, the opening pine produced by regular manufacturers tastes fragrant, while the opening pine produced by informal manufacturers tastes astringent and has an odor.

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