Qinxin brand foundry coke has the advantages of low moisture, low ash, low reactivity, high fixed carbon, high calorific value, high cold and hot strength, and uniform size. Among them, the characteristics of high fixed carbon, high calorific value, high cold and hot strength, and low reactivity are particularly suitable for medium and large cupola smelting and casting of high-end precision castings. There is also rock wool special coke developed according to the characteristics of rock wool. Among them, the characteristics of high fixed carbon and high calorific value fully meet the high quality requirements of coke indicators for high-quality rock wool production.