... iron,and ect.4.)process/treatment:cutting ,stamping,perforating, bending, welding,plating,powdercoating,assembling,5.)machine:CNC lathes,machining centers,pressing machines,drilling machines, ... grindingmechines, injection moulding machine,ect.6.)surface treatment:powder coated,zinc,chrome,finished and accroding your requirements7.) ...