neck BW2 1) valves range from 1/2" - 20" 2) export to overseas 3) More than 20 years manufacture experience neck BW2(neck flange ,flange)1) Size: 1/8"-4"2) Pressure: 150lbs3) Material: 304/3164) Applicable medium: water, oil, gas and every kind of corrosive mediumsPacking:Carton/wooden case/pallet neck BW2(neck flange,flange)