... barbed wire ISO 9001 compititive price, high quality uesd for prison,airport,military etc Material : low carbon steel wire, electric galvanized wire , hot-dip galvanized wire ,annealed wire ... high safety factor, a good deterrent effect Tensile Stength: 30-55 kgs./sq.mm.Specification Barbed Wire ... )Barb Length(cm)Electro Galvanized Barbed Wire;Hot-dip zinc plating barbed wire10# x 12#7.5 ...