The registration address of the zhengcheng filtration plant in zhuangan county is located in the village of zhuang qiang township in zhuangang township, in hebei province. The registration authority is the zibao district market supervision authority of zianang city. The legal entity is represented and operates in the production and sale of filtration cores, filters, paper filters, filters, filters, dust removal equipment and accessories (projects subject to the approval of the relevant authorities in accordance with the law)*