brinell hardness standard machine
短語詞組
- primary Brinell hardness standard machine 原級勃氏硬度標(biāo)準(zhǔn)機
- secondary Brinell hardness standard machine 副基準(zhǔn)布氏硬度機
- Working standard Brinell hardness machine 工作基準(zhǔn)布氏硬度機 返回 brinell hardness standard machine