tube support


  • 翻译:钻杆垫板

同义词

1)tube support,钻杆垫板2)drill rod padding fork,钻杆垫叉3)roof bolt plate,锚杆垫板4)roof bolt hole,顶板锚杆钻孔5)spacer strip,垫片,垫板6)bench hook,垫板;台垫

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