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extension steel meaning in English

接杆钎子
拧接钻杆

Examples

  1. Rope thread extension steel bars for rock drilling
    凿岩用波形螺纹连接钎杆

Related Words

  1. extension port
  2. extension knife
  3. sing extension
  4. extension plan
  5. extension intension
  6. topological extension
  7. extension strain
  8. extension nipple
  9. lease extension
  10. extension bonnet
  11. extension spring
  12. extension station
  13. extension stem
  14. extension stem-operation
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