wrapped up by still

• 包钢

wrapped up by still的用法和样例：

例句

1. However,on some Ming Qing rigid swords,it's hard to descry it's forged by inserted steel by eyes.
   但在部分明清硬体刀剑上不少是肉眼难以看出夹嵌钢锻造的，这类钢刃能否就看作有包钢烧刃法锻造可能？