Pneumatic hammer is optional to carry out the construction of pilot bore in gravels rocks and backfills.

 
  • 可選配氣動(dòng)沖擊錘,用于卵礫石、巖石和回填雜土中導向孔的施工;
今日熱詞
目錄 附錄 查詞歷史
国内精品美女A∨在线播放xuan