... . Size1/2''-240''(DN15 to DN6000)TypeWelding Neck Flange, Slip on Flange, Threaded Flange, Socket Welding Flange, Blind Flange, OrificeFlange, ... CertificationISO 9001:2008 ISO 14001:2004 All the product pictures on our website just showing our capability and ranges. We ... to customers drawings or samples2.Software for specification drawings: Pro/E, Auto CAD, solid work 2001,CAXA,UG,CAD,CAM3. ...