众所周知，五倍子是我国传统的出口物资之一，因其中所含鞣质高达７０％～８０％，是皮革、染料和塑料工业的重要原料，也是很好的收敛剂，具有止血功能，其用途相当广泛。但是，您可知道它究竟产自何处吗？五倍子粗看起来很像一颗颗果实，然而它却并非花朵受精后的产物，... As we all know, Chinese gall nut is one of the traditional export materials, because it contains up to 70% ~ 80% of tannin, leather, dyes and plastics industry is an important raw material, but also a good astringent, with hemostatic function, its use is quite widely. But do you know exactly where it came from? Gallic coarse looks like a lot of fruit, but it is not the product of flower fertilization, ...