Our company can produce all kinds of extension springs according to customer requests and accordance with the requirements and the technical picture. Heat treatment (stress relieving) is made to increase the resistance of the springs. This process increases the life and performance of the material Where to use: in use automobile, electric, white goods, furniture, machinery industries. Size: from 0.10 mm to 22 mm Type of material: patent annealed cold drawn unalloyed spring steel wire. Oil hardened and tempered spring steel wire. Stainless spring steel. Delivery time: can change according to amount of product (number) the that you have indicated with order. 80x120x90