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 | Please provide spring parameters, as temperature, material, outer diameter, wire diameter, height, number of turns, spring rate, etc., preferably with drawings. Confirmation of delivery, payment, transportation plan, etc. step 1、Mechanical Chemical composition analysis and Mechanical properties testing. step 2、Spring CNC forming step 3、Heat treatment (atmosphere protection box type electric furnace, continuous electric furnace) step 4、CNC spring end face grinding step 5、Pressure Set step 6、Hardness testing step 7、Size Inspection、characteristic detection、fatigue test step 8、Test report Label paper + plastic bag + carton packaging |
