Standard Input Output Norms require specific input proportions for metal rubber automotive parts to ensure import for export compliance. Standard Input Output Norms under the Foreign Trade Policy set specific input ratios for metal fitted and metal bonded/unbonded rubber automotive parts: mild steels at 1.30 kg per kg of export product; a rubber compound mix with defined component weights (natural/synthetic rubber 0.63 kg, carbon black 0.126 kg, zinc oxide 0.0315 kg, rubber chemicals 0.012 kg, misc chemicals 0.042 kg per kg of export product); and a bonding agent at 0.01 kg per kg of steel. Importers must ensure imported goods correspond to those used in the exported product and comply with the schedule's proportion determinations.