新型直通调速阀，PSA4 ABC516- 上海五久自动化设备有限公司

p1Src=//y1.yzimgs.com/uploads/391770/20250209-50334973.jpg&p2Src=//y1.yzimgs.com/uploads/391770/20250207-79785384.jpg&p3Src=//y1.yzimgs.com/uploads/391770/20250207-21685395.jpg"