... area, strong adsorptive properties and high intensity, widely used in treatment of kinds of water and extracting gold. They are ... from fire.About Us: Our factory was established in 2008, and is located in Gongyi City, Henan, China. With hundreds of ... activated carbon, PAM, PAC, anthracite filter media, quartz sands, walnut shell filters, garnet filters, polishing sands, rust sands, sponge iron, medical ...