bolted manhole 中文意思是什麼

bolted manhole 解釋
螺栓固定蓋板人孔
  • bolted : 螺栓連接的
  • manhole : 人孔，（陰溝的）檢修孔；【鐵路】避孔。
  1. Specification for manhole cover assembly, bolted, semi - flush, oiltight and watertight

    半埋入式防油防水螺栓連接人孔蓋組件規范
  2. Standard specification for manhole cover assembly, bolted, raised, oiltight and watertight

    防油防水隆起的螺栓連接檢查孔蓋組件標準規范
  3. Specification for manhole cover assembly, bolted, hinged, semi - flush, oiltight and watertight

    半埋入式防油防水螺栓連接的人孔蓋組件規范
  4. Standard specification for manhole cover assembly bolted, semi - flush, oiltight and watertight

    防油防水半嵌入螺栓連接檢查孔蓋組件標準規范
  5. Standard specification for manhole cover assembly, bolted, semi - flush, oiltight and watertight, hinged

    防油防水半嵌入螺栓鉸接檢查孔蓋組件
  6. Step irons for staggered manhole steps - part 3 : bolted - on step irons

    錯列人孔階梯腳扣.第3部分:螺栓連接的階梯腳扣
  7. Step irons with upstand for staggered manhole steps - part 3 : bolted - on step irons

    錯列人孔直立式階梯腳扣.第3部分:螺栓連接的階梯腳扣
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