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Visiting Guidance of Shanghai Huangpu River Project Leaders

5月26日，上海黃浦江上游連通工程項目領(lǐng)導蒞臨公司，該項目所用的DN4000球鐵蝶閥為引水行業(yè)應(yīng)用超大口徑球墨鑄鐵閥門。