Heycarb Powdered Activated Carbon Manufacturer From China Over 20 years of industry experience in powdered activated carbon manufacturing. 16pcs Production Patents. Annual Output 18000 tons. High methylene blue 300mg/g, high caramel value140%, can adjust pH value, low ash content0.2-1%. Heycarbons is a leading powdered activated carbon factory supplier from China. There are many raw materials … Continue reading Powdered Activated Carbon