Eurostat, Luxembourg. 74160000 (01/1988-12/2006) Copper springs (excl. clock and watch springs, spring washers and other lock washers): CN 74160000 /Exports /Unit = Prices (Euro/ton) /Partner: Iran /Reporter: European Union /74160000:Copper Springs (Excl. Clock and Watch Springs, Spring Washers and Other Lock Washers).