Vacuum Components, Sanitary Fittings, Sanitary Valves manufacturer / supplier in China, offering OEM Vacuum Pump Fittings Kf10 Kf16 Kf25 Trapped Center Rings with Aluminum Outer Ring, Customized Metal Ring Aluminum 304 316 Round Welded Flange Kf Over Pressure Ring Vacuum Center Rings, Kf Over Pressure Ring Seals Vacuum Aluminum Kf10 Trapped Center Rings and so on.