designation of steel grades的意思|示意

指定的钢种 designation of steel grades » 指定的钢种 the man shouted getting angry with this doctor who thought he knew everything » 男子大喊生气的医生，却以为他什么都知道 .

指定钢种 Silk Polyester Print Parka » 丝绸聚酯打印风雪大衣 designation of steel grades » 指定钢种 There are kids eat ice cream » 有孩子吃冰淇淋 ..