rock-drill steel
常见例句
- Through the shallow hardening treatment, the steel T8A can have better contact-fatigue resistance to the repeatedimpactload-test and can be used for making the piston of rock drill.
经薄层硬化的T8A钢，可以获得较好的多冲接触疲劳抗力，故有可能作为凿岩机活塞用材。 返回 rock-drill steel