1.Description:springs 2.Wire dia: 0.08-14mm 3.Material:many ... products is wide, including Compression springs, Extension springs, Torsion springs, Battery spring, Power spring, Coil spring , Leaf spring, Mould spring,etc., and other unique feature ... Wire diameter(2) Material(3) Free length(4) Maximum outside diameter, minimum inside diameter(5) Number of coils Manufacturer supplied round wire ...