The registration address of the company is liu zaithong village, in each of the townships of yugang, yangtzeang city, hebei province. The registration authority is the grand city and county market supervision authority, with the legal personality representing wang bingkun, and covers the production and sale of fire-proof materials, the manufacture and sale of fibres and products, the manufacture and sale of fire-resistant materials, the processing of doors and windows, the manufacture and sale of paints (without dangerous chemicals), the manufacture and sale of insulation and sound-proof materials, the sale of asbestos products, the sale of sealed fillings (without dangerous chemicals), the sale of synthetic materials (without dangerous chemicals), the sale of fire-fighting equipment and construction works. (projects subject to legal approval may not operate without the approval of the relevant department)