The registration address of the ronvo filtering equipment limited in the county of zhuangan is located in the village of the guangan springs leisure and commercial park of hebei province. The registration authority is the guuanan county market supervision authority of zhongang city, represented by a legal person and includes the production and sale of cores, filters, filters, hydraulic parts; processing, sale of filters and filter parts; import, export of goods, export and import of technology (projects subject to approval by law and approval of the relevant department)*