flange 1. size:1/2'-48" 2.Standard: ANSI, ASME, DIN, JIS, BS,GB 3.Material: carbon steel (seam & seamless) ... ProductsPIPES,Elbow, Bend, Tee ,Reducers ,Flange ,Cap , Corrugated ... , Chemical, Power, Gas, Metallurgy, Shipbuilding, Construction, etc WN stainless steel flange