| Langfang Meixin Fireproof Materials Co., Ltd | 2016-03-22 | National Standard Fireproof Mud, Fireproof Mud, Explosion-Proof Adhesive Mud, Fire Blocking Module | 21000K CNY | Tidak didukung |
| Langfang Gaoteng Fireproof Materials Co., Ltd | 2020-09-07 | National Standard Fireproof Mud, Fireproof Trough Box, Fireproof Board Coated Board | 500K CNY | Tidak didukung |
| Hebei Xinjinteng Fireproof Materials Co., Ltd | 2023-01-13 | National Standard Fireproof Mud, Glass Flake Coating, Fireproof Coating | 6600K CNY | Didukung |
| Langfang Allies Fireproof Materials Co., Ltd | 2015-12-14 | National Standard Fireproof Mud, Rock Wool Insulation, Special Coatings | 18000K CNY | Tidak didukung |
| Beiguan Xinchang Sealing Material Sales Department, Dacheng County | 2020-08-28 | National Standard Fireproof Mud, Aluminum Silicate Cotton Core Rope With Coiled Roots, Prepare Pure Ptfe Packing For Packing | - | Didukung |
| Langfang Dahao Fireproof Materials Co., Ltd | 2017-01-06 | National Standard Fireproof Mud, None, Tunnel Fireproof Coating | 50000K CNY | Tidak didukung |
| Langfang Xukun Fireproof Materials Co., Ltd | 2024-11-19 | National Standard Fireproof Mud, Fireproof Fabric, Fireproof Board | 500K CNY | Tidak didukung |
| Hebei Zhangzhan Weiye Technology Development Co., Ltd | 2018-09-14 | National Standard Fireproof Mud, Indoor Non Expanding Fireproof Coating, Outdoor Non Expanding Fireproof Coating | 20000K CNY | Tidak didukung |
| Hebei Meixia Environmental Protection Technology Co., Ltd | 2018-04-20 | National Standard Fireproof Mud, Fire Blocking Module, Fireproof Putty | 16660K CNY | Tidak didukung |
| Langfang Kaifei Fireproof Materials Co., Ltd | 2022-12-13 | National Standard Fireproof Mud, Glass Flake Adhesive, Removable Insulation Sleeve | 2000K CNY | Tidak didukung |