Inquiry (采购产品): Plastic caps for vacuum flanges Please send catalogue of range of top hat style caps and price / 100. Saw a sample Niagra plastics co Erie PA 390 will fit our DN200 flange. We need range from DN16 to DN300 and some special sizes. Regards, Peter Sheasby. **** Hidden Message ***** Peter Sheasby Maunsell road Castleham industrial estate. HastingsTN38 9NN GBR Company: Thermo Vacuum Generators Title: Q A Manager. E-mail: peter.sheasby@thermo.com **** Hidden Message ***** peter.sheasby@thermo.com