... chrome-plated, silver-plated, gold-plated, imitation gold-plated, and so on.2. Wire Diameter : 0.10 mm to ... CNC computer machines4. Springs have good hardness and resistance to both high and low temperature;5.Usage:cars, machinery, ... , stationery, computers, power switches, miniature switches, architecture, commodity and A/V equipment, hardware and plastic molds, sports equipment and gifts,etc Springs