An孕育 agent is designed to promote graphitization, reduce the tendency towards white mouth, regulate the morphology and distribution of graphite, increase the number of eutectic spheroids, and refine the matrix structure. It exhibits good effects shortly after the孕育 treatment (approximately 5-8 minutes). It is mainly suitable for general castings or late-stage instantaneous孕育 in various conditions. Usage instructions: 1. Inverted bag孕育: Add the孕育 agent to the bag, then pour in the molten iron, allowing it to melt uniformly before casting. 2. The amount added should be about 1.0-1.8% of the iron melt weight.