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