The registration address of the huawei filtering equipment limited in the county of guangan is located in the industrial park of the city of guangan, with the registration authority being the qiangang county business administration, represented by the legal person yao jia and operating in the fields of core filtering, filtering, dust removal, gravel separators, butterfly valves, faeces, oil filters, production of filtering machinery, sale (except as prohibited by law or by statute; laws and administrative regulations require administrative permission to operate without authorization)*