The outlet valve of the plunger pump must be taken down before the inlet valve is hauled out with the former disassembling instrument for the valve.
英
美
释义
柱塞泵的下凡尔损坏后,用原来配的凡尔拔出器拆卸时要先拆掉上凡尔,再拆卸维修下凡尔。
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