Activated Carbon, Humic Acid, Sodium Humate manufacturer / supplier in China, offering Columnar Wood-Based Activated Carbon for Water Treatment & Air Purification, High Iodine Value 1000mg/G, High Purity Factory Coconut Shell Aw Columnar Activated Carbon Pellets for Water Treatment Petroleum Additives, Low Ash Columnar Activated Carbon for Air / Water Purification Water Treatment Activated Carbon and so on.