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鐵嶺閥門有限公(gong)(gong)司始(shi)建于1935年,是中國低壓(ya)大口徑閥門專業生產基地,閥門公(gong)(gong)稱(cheng)通(tong)徑為DN50-6000mm;適(shi)用溫度:-200~680℃;適(shi)用壓(ya)力為...