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工厂供水设备水压变小，水泵提出来问题找到，师傅秀的一手好焊功
工厂供水设备水压变小，奇葩弯头设计害的白跑一趟，潜水泵提出来问题找到，师傅秀的一手好焊功#潜水泵##电焊##三相电机##电工##工厂##供水设备#
大南砸水泵77/186
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