Concertina wire fencing

It is called concertina wire, named after the musical instrument and its expanding and contracting bellows. It resembles barbed wire that's commonly used to corral cattle, but it comes in flat coils that can quickly expand like its namesake, making it easier to store, transport and install.Concertina wire consists of high tensile strength core wire and a punched steel tape with barbs. The production process of combining the core with the steel tape is called roll forming. Here is a brief process of stainless steel concertina wire production.The English concertina is a unisonoric instrument which means that each button plays the same note on both the push and pull, like a piano accordion. It's most commonly used for playing English folk music, though some use it to play traditional Irish music to great effect.