<h1>Input-output norms govern steel dish-end exports, linking permitted imports to declared steel content and requiring import-use matching and verification.</h1> Standardised input-output norms under SION C1808 require that Dish Ends of non-alloy, alloy, or stainless steel be quantified by a kg/kg content measure tying permissible import inputs to the steel content of the exported product; an amendment broadened the scope to include alloy and stainless steel. Schedules set proportions of inputs for manufacture, and exporters must ensure imported goods are those actually used in the export product, subject to compliance verification.