The registration address of the humboldt golden temperature materials company ltd. Is located in the village of surfang village in the city of fuzhou city, hebei province. The registration authority is the inter-river market monitoring authority, represented by yang yanmi, and operates on the basis of the sale of rock cotton products, polyurethane foam plastic sheeting, polyurethane foam plastic tube processing (except for the state industrial policy restriction category, phase-out category); temperature preservation materials, sealing materials, water defence materials, anti-corruption materials, fire resistance materials, asbestos products, fibreglass products, rubber products, metal products, chemical products (other than hazardous chemicals); anti-corruption works, heating works and water protection works. (projects subject to legal approval may not operate without the approval of the relevant department)