厚度计，天然皮革，人造皮的英文怎么说啊？

厚度计 thickness meter

天然皮革 nature leather

人造皮 artificial leather

This thickness meter is equipped with a spring whose elastic force is 4.5 newton.

厚度计 thickness meter

天然皮革 genuine leather

人造皮 artificial leather

该厚度计具有一个反弹力为4.5牛顿的弹簧

This thickness meter is equiped with a spring whose elastic force scope is 4.5 newton.