The registration address of rencho is located at no. 21 on the street of yongfeng village and alley, yunfeng road, yunfeng county, hebei province. The registration authority is the market supervision authority of renchou city and is represented by a legal person who works in the following areas: production, sale, installation of fire doors, fireproof windows, curtain walls, zinc window windows, broken aluminium doors and windows, zinc steel fences, goldnet veil windows, invisible windows, stainless steel fences, kendji gate, garage doors, burglary doors, blast doors, blast windows, fire-proof curtain doors, aluminium alloy windows, window windows, electric discharge windows, fire rescue windows, plastic steel fireproof windows, blast doors, blastproof windows, stairwells, stairways, floor-to-mouth systems, windows, windows, windows, windows; sales of fire-proof materials, fireproof glass, pearl boards, cement panels, windows, windows and windows. (projects subject to legal approval and subject to the approval of the relevant authorities before they can operate; general operating projects may operate autonomously according to law)***