2. Use matters: 2.1 Adding temperature: ≥730°C. 2.2 The reference dosage of this product is calculated according to the following formula: Note: Due to the difference between the users and the metallurgical conditions in the furnace, the actual yield and the actual addition amount should be calculated and determined based on the test data before the furnace. 2.3 Add method: After the charge is melted, stir evenly, take a sample and analyze to calculate the amount of copper added. When the melt temperature is reached, remove the dross on the surface of the melt, and disperse the product into various parts of the molten pool (if it is necessary to add manganese and iron agents, they can be added at the same time). After the reaction is complete, stand still for 10 minutes and stir thoroughly; only when the ingredients are qualified can it be transferred to the next process.   3. Packaging and storage: This product is a round cake-shaped dark red lump, the inner packaging is vacuum bag/aluminum foil packaging, 500g/piece, 2.5kg/bag, and the outer packaging is cardboard box, 20kg/box. Store in a ventilated and dry place, away from moisture.   4. Shelf life Eight months, can use it directly after opening the box.