电动法兰通风蝶阀,不锈钢通风蝶阀 D941W
上海博洋水泵厂
p1Src=//y1.yzimgs.com/uploads_old/176307/2008111401543623_Old.jpg&p2Src=//y1.yzimgs.com/uploads_old/176307/2008111401543623_Old_1.jpg&p3Src=//y1.yzimgs.com/uploads_old/176307/2008111401543623_Old_2.jpg