Steel Wire Ropes Galvanized Wire Bead Wire Single Strand Mechanical Spring Wire Mattress Spring Wire Prestressed Concrete Strand Prestressed Wire Strand   MATTRESS SPRING WIRE Mattress wires are used in mattress and armchair springs are produced in compliance with special specifications of customers. Production is made generally in the range of 1.30 mm – 3.50 mm, on steel basket or in coil according to the customer’s request.