gongyi zhengda environmental protection materials co., ltd. is an enterprise mainly engaged in activated carbon materials. its main products include powdered activated carbon, columnar activated carbon, powder activated carbon, coal-based granular activated carbon, fruit shell activated carbon, honeycomb activated carbon, etc., as well as filter materials such as activated alumina spheres, which are priced at a discount. welcome to inquire! (cathode steel )comprehensive other
www.jlhnw.com 2023-10-20