refractory steel

• 热强钢,耐热钢

refractory steel的用法和样例：

例句

1. Ferro Silicon ,a widely used alloy, can be used as de-oxygen agent in steel casting and steel making, can be also used as an alloy agen in making silicon steel.
   硅铁是应用广泛的一个铁合金品种，是炼钢铸造的脱氧剂，是炼硅钢，弹簧钢，耐热钢等的合金剂。