intermediate grade steel

例句：

1. 1.The construction site requires a lot of intermediate grade steel for the scaffolding.
   施工现场需要大量的中间级别钢材来搭建脚手架。
2. 2.The engineer used intermediate grade steel to reinforce the beams in the bridge.
   工程师使用中间级别的钢材加固了桥梁的梁。
3. 3.The manufacturer specializes in producing intermediate grade steel for industrial applications.
   该制造商专门生产工业应用中的中间级别钢材。