If you can provide the industry, product type, or source of this code (e.g., automotive catalog, electronic component, machinery part), a more precise identification can be given.
390319 - Polystyrene - Other Nes - Canadian Importers Database (CID) K.J 130319 K.J 130319L
Based on the code’s form, here are plausible domains where K.J 130319 or K.J 130319L might appear: If you can provide the industry, product type,