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stainless steel ballnut: 1,standard:DIN319 2,OEM are wellcome 1 Material zinc alloy,stainless steel,copper alloy 2 Equipment 5ton-500ton high speed punching machine ,wire cutting machine (precision0.003mm) ,precise grinder(precision0.004mm) ,radial drilling machine ,milling machine . 3 Inspection Microscope,Micrometer,Altitudecompass,Projection 4 Finish zincplated,chromatedplated ,electrophoresis ,dacromet 5 Applied to Adjusting spring of preloaded force,The valve stroke,Some parts of the displacement 6 Functions High brightness, working, low consumption, miniaturization, easy and integrated circuit, drive is simple, long life, impact resistance, steady performance. 7 Advantages lower price,high quality,advantage technical,fast delivery 8 Package polybag or bubble bag or as per your request 9 Certification ISO9001:2000, ROHS 10 Remarks We manufacture products according to customers drawing or samples ,The products are shown on the list only prove our production activity and capacity, not for sale .