| met. | 成圈器 | laying head (The company has installed an intensive cooling system on the billet caster, upgraded the laminar cooling system of the hot strip mill, and installed a new laying head on the rod and bar mill 该公司已在小方坯连铸机上安装了一套高强度冷却系统，对带钢热轧机的层流冷却系统进行了改造，在线棒材轧机上安装了一个新的吐丝机。) |
