真空蝶阀 GI-25，GI-32，GI-40，GI-50，GI-100，GI-125， 无锡市昌林自动化科技有限公司

p1Src=//y1.yzimgs.com/uploads/876/2022420-225723867.jpg?watermark/2/text/5peg6ZSh5biC5piM5p6X6Ieq5Yqo5YyW56eR5oqA5pyJ6ZmQ5YWs5Y-4/font/5a6L5L2T/fontsize/300/fill/I0E3QTlBOA==/gravity/SouthEast