Carl is a supplier based in China listing a range of activated carbon products on Global Trade Plaza. The portfolio includes columnar, powder, coal-based, acid-washed, coconut shell and granular grades, each described with specific raw materials, mesh sizes and performance parameters. Columnar activated carbon is offered in diameters from 1.5 mm to 8 mm with iodine numbers of 500–1100 mg/g, CTC 40–90% and hardness of 95%. Powder activated carbon is made from coal or wood sawdust and highlighted for methylene blue value and decolorising use. Coal activated carbon uses anthracite and is noted for high hardness, low ash and large surface area. Acid-washed activated carbon is specified for low acid-soluble iron and low-pH liquids. Coconut shell activated carbon and granular activated carbon are both listed with mesh ranges of 4–8, 6–12, 8–16, 12–40, 8–30 and 30–80. Buyers can send an enquiry through Global Trade Plaza.