... , Material: 304, 304L, 316, 316L, carbon steel or other material on request 4, Technics: Forged, Casting 5, Packing: Wooden cases, wooden ... Neck Flanges, Slip-On Flanges, Lap Joint Flanges, Threaded Flanges, Socket Welding Flanges, Blind Flanges, Other Flanges High quality stainless steel welding neck ...