wire diameter ranged from 0.05-5mm, minimum spring convolution: 2.7
•Various materials: music wire, carbon wire, stainless steelwire, copper, beryllium copper wire, and more
•Pitch changeable
•Spring diameter changeable
•Applications: all kinds of cars,machines, electronic products, electric appliance, cameras,stationery, computers, power switches,miniature switches,architecture, commodity and home appliance, A/V equipment, hardware and plastic molds, sports equipment and gifts