Inspection bureau leaders to Yingli machinery production department guidance---Nipple,Flange,Forged Fitting,QINGDAO YINGLI MACHINERY CO.,LTD

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Inspection bureau leaders to Yingli machinery production department guidance

Time：2024-05-20 16:56:28

2024.5.20, Qingdao Quality and Technical Inspection Bureau to my company's production

department research work, and to guide our work.