... Flanges, Lap Joint Flanges, Ring Joint Flanges, Long Welding Neck Flanges, Figure 8 BlanksPRESSURE GRADE: Class150,Class300, ... TYPE11(Weld-neck Flanges); TYPE12(Hubbed Slip-on Flanges For Welding); TYPE13(Hubbed Threaded Flanges)Pressure ClassPN2.5PN6PN10PN16PN25PN40PN63PN100SIZE: 1/ ... joint flange, thread flange, slip on flange,socket welding flange,blind flange material: carbon steel, stainless steel ...