YiQing brand, coal-based granular activated carbon, produced from Ningxia Taixi coal as raw material, boasts high strength, low ash content, and strong adsorption efficiency, especially excelling in VOCs organic waste gas treatment. The commonly used coal-based granular activated carbon typically has a diameter of 4.0mm, with other sizes (1.5mm, 2.0mm, 3.0mm, 6.0mm) available for customization. Currently, many provinces including Jiangsu and Shandong have explicitly set the iodine value requirement for granular activated carbon used in organic waste gas treatment to be no less than 800mg/g.