thermosetting plastics

例句：

1. 1. The company uses thermosetting plastics in its packaging to make it durable and environmentally friendly.
   该公司使用热固性塑料在其包装中，以使其耐用且环保。
2. 2. The thermosetting material will not deform when exposed to heat.
   这种热固性材料在暴露于热时不会变形。
3. 3. In the manufacturing process, thermosetting plastics are often used to create molds for casting metal parts.
   在制造过程中，热固性塑料常用于铸造金属部件的模具。