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We could provide professional manufacturing on non-standard springs, mechanical springs, suspension springs etc. in accordance with customer’s requirement. Wire diameters range from 0.3mm to 14mm, with finish treatment as powder coating, zinc plating or Ni plating, and Cr. Plating as well. material 65Mn, stainless steel, or uponcustomer's request wire diameter0.3mm 14.0mmfinishpowder coating, zinc plating, Ni plating ect. We are equipped with multiple models of large scale automatic winding machines, with1 million springs capacity per month. The springs applied for vending machine have been exported to U.S.A. and Japan, annual output reach 500,000 pcs per year based on widely accepted quality. We welcome your inquiry. We are capable to proceed with the production according to your sample or drawing.