Galvanized Barb Wire Extension Pressed steel one/two piece line arm Hot dipped galvanized ASTM 1-7/8"x1-5/8", ... Wire ExtensionWe company supply various fencing fittings, including barb wire arm, post cap, sleeve, tension band, brace band, wire strainer, short ... to Canada, USA, Mexico and Middle East,etc.Bab wire extension arm is one of the most popular fittings. Material: pressed-steelSurface ...