当时哪有钢筋水泥啊。

There wasn't steel and cement then.

这所房屋用钢筋水泥建造，是可以防火的。

This building which is made of steel and concrete is fireproof.

在这个城市的钢筋水泥的“笼子”里，你可以做到什么？

In the city of steel and concrete of the "cage", you can do what?

海登监狱摒弃了传统的监狱建材钢筋水泥，而是采用了砖石和木材，让整个建筑看起来和丛林非常和谐。

To avoid an institutional feel, exteriors are not concrete but made of bricks, galvanized steel and larch; the buildings seem to have grown organically from the woodlands.