Rigid Polyurethane的用法和樣例：
例句
- Accelerated hygrothermal aging tests of rigid polyurethane foam were carried out to simulate the in-door store lifetime.
對硬質聚氨酯泡沫塑料進行了貯存壽命預測研究。 - It is a good-quality and new-type product used for manufacturing rigid polyurethane cellula plastic.
主要應用於生產硬質聚氨酯泡沫塑料，是一種優良的新型產品。
