Input-output norms require importers to match component imports to actual use in export manufacture and document proportions.

Standard Input-Output Norms for an Oil Pressure Switch specify component-level items (spring, body, diaphragm, rivet contact, relevant screw) measured on a net-to-net basis, require determination of proportions of inputs used in manufacturing the resultant export product, and obligate applicants to ensure imported goods are those actually used in the export product.

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