a method for producing an adjustment shim includes preparing a liquid solution of a non - polymerized resin and a solvent ; coating sheets of metal with the liquid solution so as to form a film of resin on at least one face of each of the sheets of metal ; stacking the metal sheets so that two adjacent sheets of metal are separated by the film of resin ; and curing the resin films in the stack of metal sheets , for a predefined time period , at a temperature higher than a degradation or burning temperature of the resin .