Input-output norms for copper-alloy components require imported inputs to match declared use in exported products. Input-output norms set composition limits and conversion ratios for machined copper-alloy components, requiring each alloying element not to exceed five percent and conformity to specified material standards and conductivity ranges. A schedule prescribes determining permissible input proportions for manufacture and obliges applicants to ensure imported inputs are those actually used or required in the exported product, linking import entitlement to declared input composition and the input-to-output conversion factor.