Dd973H-16C，Dd973H-16P，Dd973H-16R，Dd973H-16V，对夹式多层次金属硬密封蝶阀 Dd973H-16C，Dd973H-16P，Dd973H-16R，Dd973H-16V，对夹式多层次 无锡市昌林自动化科技有限公司

p1Src=//y1.yzimgs.com/uploads/328469/20161230-1042663.jpg?watermark/2/text/5peg6ZSh5biC5piM5p6X6Ieq5Yqo5YyW56eR5oqA5pyJ6ZmQ5YWs5Y-4/font/5a6L5L2T/fontsize/300/fill/I0E3QTlBOA==/gravity/SouthEast