The registration address of the company is located in the village of the firm spa commercial park of hebei province, with the registration authority being the administrative authority for commerce and industry of the county of zhuhou fong, representing the company, and includes the production, processing and sale of filters, filtries, filters, oil filters, dust removal equipment, purification equipment and accessories; various filters, filters, filters, filters, chemical materials (except for the approval of dangerous chemicals, etc.), iron powder, iron ore, steel, sale; mechanical accessories, plastics processing and marketing (subject to the approval of the relevant authorities in accordance with the law)*