The registration address of hebei's pipeline valves is located in the village of guo-hong, the town of poimen, in the city of poojo, in hebei province. The registration authority is the market supervision authority of the hooping city, represented by li sook-ling, who operates in the production, sale and assembly of valves; the processing and sale of casting iron, found copper and plumbing; the production and sale of rubber products and plastics; the processing of machinery; the import and export of goods (the above-mentioned operations, involving licensed projects, shall be operated only with the permission of the relevant authorities)