I am engaged in lead smelting, and I have never heard of reducing lead. Electrolytic lead refers to the crude lead produced after preliminary smelting using an electrolytic process to further refine it to obtain a product containing more than 99.994% lead (National Standard No. 1), which is called electrolytic lead. Recycled lead refers to lead products obtained after pretreatment and smelting of recycled lead-containing materials (such as lead-acid batteries), including electrolytic lead or lead alloys. Needless to say, lead alloys are lead alloy products, usually lead-antimony alloys and lead-calcium alloys. As mentioned just now, crude lead is an intermediate product produced after the preliminary smelting process of lead-containing raw materials, and the lead content is generally above 96%. There are generally valuable metals or impurities such as gold, silver, copper, sulfur, and antimony.