So they used a urethane resin for light, tough, and hollow nails.

此，他们使用聚氨酯树脂来制作轻质、坚韧和空心的指。

The 90-pound version was made with epoxy armor shells, urethane, leather, and aluminum.

90 磅重的版本由环氧树脂装壳、聚氨酯、皮革和铝制成。

Next step is urethane foam, which you can buy or secretly steal a bit from a cushion in your house.

下一步是聚氨酯泡沫，你可以购买或偷偷地从你家里的垫子上偷一点。

The team also redesigned the armor in the sequel, molding out more than 100 smaller plates in clay before casting them in urethane.

该团队还重新设计了续集中的，用粘土模塑出 100 多个较小的板，然后再用聚氨酯铸造​​。

Chlor-alkali industry is the source of epoxies, it's the source of urethanes and solvents and a lot of useful products that we use in our everyday lives.

氯碱工业是环氧树脂的来源，它是聚氨酯和溶剂的来源， 也是我们日常生活中使用的许多有用产品的来源。