... for 2000 tonsSpecificationsMaterial: carbon steel, stainless steel ,cast steelSize: 1/2-48 inch, DN15-1200 Other Standard: ANSI,JIS, DIN,UNI ... . Thread, Socket Weld, Blind Flanges4) Material: A105, SS400, SF440, RST37.2, S235, C22.8, F304, F304L, F316, F316L, 316Ti5) Surface Treat ... you to visit our factory, and establish long term cooperation. 2011 hot sales widely GB PN10 flange