Model Number: SW09 Standard: As per required Name: Railway Helical spring lock washers Other name: Rail Coil Washer Material: Spring steel, 65 Mn, 60Si2Mn Service: OED, OEM Quality Control: Inspection on each workshift/new batch material/machine adjustment Processing: Stamping Guarantee: According to Contract Surface: Plain oiled, HDG, Black Oxide, Dacromet, etc Certificate: ISO, SGS, TUV Packaging: Double Woven Bags on fumigation Free Pallet or Carbon Box on fumigation Free Pallet Payment: L/C T/T Western Union Shipment: Shipped in 25 days after payment Price: $0.12-0.25/piece MOQ: 5000pieces Supply Capability: 3000T per month Port: Shanghai