518型单气动弹簧复位自控球阀OMALS518H064,S518H065,S518H066,S518H067,S518H068, 无锡市昌林自动化科技有限公司

p1Src=//y1.yzimgs.com/uploads/328469/201695-125924696.png?watermark/2/text/5peg6ZSh5biC5piM5p6X6Ieq5Yqo5YyW56eR5oqA5pyJ6ZmQ5YWs5Y-4/font/5a6L5L2T/fontsize/300/fill/I0E3QTlBOA==/gravity/SouthEast