glass-hard steel

例句：

1. 1. This new carhas a glass-hard steel body that is both strong and lightweight.
   这款新车有一个用硬钢制成的车身，既坚固又轻便。
2. 2. The glass-hard steel door is designed to withstand heavy impacts.
   这种硬钢门设计用来承受重击。
3. 3.The manufacturer claims that their glass-hard steel products are environmentally friendly and durable.
   制造商声称他们的硬钢产品是环保且耐用的。