Our main products arecarbonsteelflanges :Germany Standard DIN, American StandardANSIB16.5,British Standard BS4504, Japanese Standard JIS, Italy Standard UNI and Chinese Standard Flange Plate.Flange series products: weld neck, SO, blind board, screw thread, flat and so on. Flange series products: weld neck, SO, blind board, screw thread, flat and so on. The specification are from 1/2"(DN 15) to 36"Our factory was founded in1998 and owns the self-support export right, and we have passed ISO9001:2000 International Quality Certificatelook forward to receiving your enquires soon!