不锈钢硬密封气动蝶阀 D673W 永嘉县英科泵阀有限公司

p1Src=//y2.yzimgs.com/uploads/494846/2018821-132122998.jpg&p2Src=//y2.yzimgs.com/uploads_old/494846/2015120117204858_old.jpg&p3Src=//y2.yzimgs.com/uploads_old/494846/2015120117204866_old.jpg