pre-treatment process in hot metal

• 铁水预处理

pre-treatment process in hot metal的用法和样例：

例句

1. Calcium carbide-base complex desulphurizer is a desulphurizer for hot metal pretreatment, which was developed by our company with co-operation of Baosteel Research Institute.
   电石粉基复合脱硫剂是我公司与宝钢钢研所合作开发的铁水预处理脱硫剂。