<h1>Standard input output norms for manganese steel castings restrict permissible import inputs and set route based adjustments and exclusions.</h1> Standard input output norms set permissible inputs and quantities for manufacturing manganese steel rough castings for export, applicable when using Electric Arc or Induction Furnace routes with melting scrap, specify route based exclusions (such as certain electrodes for the Induction Furnace route), and require exporters to ensure imported goods match inputs actually used in the exported product; multipliers for machined castings adjust input quantities by piece weight categories.