... Sample We are a reliable supplier that can make Blind Flanges. Here are some details of the products for your ... Threaded Flange, Socket Welding Flange, Blind Flange, OrificeFlange, Ring Joint Flanges, Long Welding Neck Flange, Figure 8 Blanks Wall ThicknessSch10 , Sch20 ... to customers drawings or samples2.Software for specification drawings: Pro/E, Auto CAD, solid work 2001,CAXA,UG,CAD,CAM3. ...