聚氨酯的用途：冷库、冷藏车或保鲜箱。

The purpose: the cold storage, polyurethane or refrigerator fresh box.

youdao

聚氨酯的用途：冷库、冷藏车或保鲜箱。

The purpose: the cold storage, polyurethane or refrigerator fresh box.

youdao