1. Material: Steel, stainless steel, alloy steel (45#, 60#, 40Cr, 20CrMnTi); as per customer's requirement. 2. Surface treatment: Heat treatment, rust prevention, acid resistant or parkerising, paint spraying or neutral 3. Package: poly bag + carton + 2pcs per woven bag + strap 4. Delivery time: 1 month after receiving deposit 5. Payment: T/T, LC 6. Transportation: By sea, FOB Ningbo / Shanghai, CIF, CNF 7. Place of Origin: Ruian City, (an auto parts city), Zhejiang, China 8. Guarantee: one year or 50000km guarantee (whichever comes first) 9. Certificate: ISO 9001: 2000 10. Test methods: Dynamic Balance 11. OEM orders are welcomed; the development period of new item is 2 months