The registration address of zhangohou oaks base, zhanghue park, kajiang city, hebei province, is that of zhang zhang hue's market supervision authority, with the legal personality representing wang qian yuan and covering general items: manufacture of rubber products; sale of rubber products; manufacture of plastics; sale of plastics; manufacture of synthetic materials (without hazardous chemicals); sale of synthetic materials; manufacture of seals; sale of seals; manufacture of metal chains and other metal products; sale of hardware products; retail sale of gold products; production of mine machinery; sale of mine machinery; metal cutting and processing services; sale of construction materials; production of chemical products (other than licensed chemical products); sale of chemical products (other than licensed chemical products); manufacture of chemical products (other than licensed chemical products); exclusive equipment for environmental protection; sale of specialized equipment for environmental protection; manufacture of general valves and cyclones (other than special equipment manufacture); sale of valves and rotors; sale of valves; general mechanical equipment installation services (in addition to legally approved projects, self-employed, non-prohibited and unrestricted operations)