Instructions for use: 1. Remove the scum on the surface of the molten pool, put the additives into the molten pool evenly at the normal operating temperature (730-750°C), and then let it stand still for 20-30 minutes. 2. No need to weigh when using. 3. All plastic packaging is chlorine-free film. After standing still, the molten pool should be fully stirred for 7-15 minutes, the scum should be removed, and then sampling for chemical composition analysis.   Package storage: 20kg-25kg/box, packed in plastic film or aluminum foil, prevent from moisture, because the metal powder contained in the additive is highly active and easy to oxidize, the flux contained in the additive susceptible to moisture, the surface of the additive is oxidized after damp, and in severe cases, there will be pulverization, thus affect the actual yield, or even fail.