wedge and sleeve anchor
相关英语词汇推荐
- tilting cup feeder
- drop crushing
- internal impedance
- cement injection
- Intermediate product
- crusher head
- through
- workings
- Residual expansion rate
- lump formation
- full load running
- alidade
- elastoplastic rock
- hand held drifter
- worm gear drive
- burning time
- single stage separation
- fast extraction
- bolt installing equipments
- tunneling equipment