Steel drum spring manufacturer 1>Various specification and material 2>OEM and ODM 3 ... after receive your payment.11) Application: Widely used in automobiles, motorcycles, electrical appliances, telecommunication, craft, toys ,locks,stationery,furiture ,washing ... ,bicycles,sports equipment ,etc12) Packing: A. inner packing:polybag B. outer packing: Several polybag in one carton.Product rangeWe provide ...