Input-Output norms require imported manufacturing inputs to match declared usage in exported products, ensuring material specification compliance.

Standard Input-Output Norms require that specified engineering inputs - thinwalled engine bearings, bushings and thrust washers made of steel-backed aluminium tin alloys to listed specifications - be described by their material standards and quantities and that applicants ensure imported goods correspond to those actually used or required in the export product, with proportions of various inputs determined for manufacture of resultant products.

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