Steel Weld mesh: input norms set M.S. wire 1.05kg/kg and 4% zinc; imports must match use in export product. Operative input norms for exported Steel Weld mesh (C855) fix M.S. wire at 1.05 kg per 1 kg of finished product and zinc for galvanising at 4% of the steel weight. Applicants must determine and adhere to the permissible proportions of inputs and ensure imported goods are the goods actually used or required in manufacture of the export product.