... .ISO90001&ISO14001quality control 3. Good hardness and flexibility. constant force motor springFeatures: 1) Wire Diameter: 0.1~ 2mm 2) Type: ... , electrical appliances, telecommunication, craft, toys ,locks,stationery,furiture ,washing machines,vacuum cleaners,lamps and lanterns,bicycles,sports equipment ,etc12)packing: A ... B. outer packing: Several polybag in one carton constant force motor spring