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杜仲为我国特产树种。其皮、叶均可入药,是贵重药材,有强筋骨、补肝肾、益腰膝、除酸痛,安胎等作用,复方用杜仲治疗各期高血压有特殊疗效。杜仲的叶、皮及果实均含有丰富的杜仲胶,是一种价值昂贵的硬性胶(含于体内胶腺里);可塑性大,能在大多数芳香族烃中溶解,对氟氢酸作用的抵抗力甚强,与碱及浓盐酸几乎不起作用,有高度的绝缘性及粘着性;耐磨擦,是制造海底电缆和耐酸、耐碱
Eucommia special tree species for our country. The skin, leaves can be used as medicine, is valuable medicinal herbs, a strong bones and muscles, liver and kidney benefit waist knees, in addition to soreness, tocolysis and other effects, the compound with Eucommia treatment of various stages of hypertension have a special effect. Eucommia leaf, skin and fruit are rich in gutta percha, is a valuable hard plastic (contained in the body gland); plasticity, can be dissolved in most aromatic hydrocarbons, the role of hydrofluoric acid Very strong resistance, almost no effect with alkali and concentrated hydrochloric acid, a high degree of insulation and adhesion; abrasion-resistant, is the manufacture of submarine cables and acid and alkali