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鐵嶺閥門有(you)限公(gong)司始建于1935年(nian),是(shi)中(zhong)國(guo)低壓(ya)(ya)大口徑閥門專業生產基(ji)地(di),閥門公(gong)稱通徑為(wei)DN50-6000mm;適用(yong)溫度(du):-200~680℃;適用(yong)壓(ya)(ya)力為(wei)...