EPDM is a saturated polymer basically, have good characteristics of resistance to aging, weather resistance, excellent electrical insulation properties, good chemical resistance, impact elasticity.

三元乙丙橡胶基本上是一种饱和的高聚物，耐老化性能非常好、耐天候性好、电绝缘性能优良、耐化学腐蚀性好、冲击弹性较好。

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And it's good elasticity, each part is very light, so when the impact is not broken.

而且它的弹性好，各个部位非常轻，所以在收到撞击时不会被折断。

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Although apparently rigid bones exhibit a degree of elasticity that enables the skeleton to withstand considerable impact.

骨头看起来是脆硬的，但它也有一定的弹性，使得骨骼能够承受相称的打击。

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