Product name
High quality helical compression steel disc spring coil for mattress
Material
60Si2MnA, 50CrV4, alloy steel, spring steel, carbon steel
Surface treatment
Electrophoresis, Phosphating, Dacromet,Zinc Plating,Chemical oxidation
Production time
10-12 days
Packing
Plastic bag+carton box+pallets
Application
Car, Auto, Valve, Machinery, Equipment, Industrial