we are professional manufacturer for all kinds of spring,the main product is:disc spring,cylinderical spring,spring supporter & hanger.disc spring support & hanger device.all goods ar widely serving for machinery ,metallurgy,electric power,petroteum & chemical,coal,automobile,railway,nuclear & power.all machines is imported from GERMAN,U.K..if u are interseted in them,pls contact me,i can supply u the lowest price.