A description of the internal area and surfaces of a tool or tubular assembly through which there is an unimpeded internal diameter.
内径无阻碍的工具组合或管子组合的内部区域和表面的描述。
A description of the internal area and surfaces of a tool or tubular assembly through which there is an unimpeded internal diameter.
内径无阻碍的工具组合或管子组合的内部区域和表面的描述。
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