| Langfang Meixin Fireproof Materials Co., Ltd | 2016-03-22 | Inorganic Fireproof Blocking Material, Fireproof Mud, Explosion-Proof Adhesive Mud, Fire Blocking Module | 21000K CNY | Tidak didukung |
| Langfang Gaoteng Fireproof Materials Co., Ltd | 2020-09-07 | Inorganic Fireproof Blocking Material, Fireproof Trough Box, Fireproof Board Coated Board | 500K CNY | Tidak didukung |
| Jining Huaguan Safety Equipment Co., Ltd | 2023-06-07 | Inorganic Fireproof Blocking Material, General Equipment Manufacturing, Labor Protection | 100K CNY | Tidak didukung |
| Zhong'an Fire Equipment (Shandong) Co., Ltd | 2021-06-24 | Inorganic Fireproof Blocking Material, Fire Emergency Extinguishing Drum, Anti Radiation Thermal Insulation Suit | 3500K CNY | Tidak didukung |
| Nanjing Shengshi Haofa Construction Engineering Co., Ltd | 2019-11-29 | Inorganic Fireproof Blocking Material, Elevator Shaft Sound-Absorbing Panel, Acoustic Panel | 5000K CNY | Tidak didukung |
| Tianjin Haosen Technology Co., Ltd. Hebei Branch | 2022-06-10 | Inorganic Fireproof Blocking Material, Aerogel Thermal Insulation Coating, Cable Fireproof Coating | - | Tidak didukung |
| Langfang Zhenxi Environmental Protection Technology Co., Ltd | 2021-07-12 | Inorganic Fireproof Blocking Material, Polymer Sealing Agent, Fiberglass Cloth | 10000K CNY | Tidak didukung |
| Langfang Ruitian Fireproof Materials Co., Ltd | 2015-11-10 | Inorganic Fireproof Blocking Material, Porcelain Fireproof Blanket, Nano Composite Long-Lasting Anti Fouling Flash Coating | 20000K CNY | Didukung |
| Langfang Wenxin Fire Protection Technology Co., Ltd | 2025-04-24 | Inorganic Fireproof Blocking Material, Rock Wool Pipe, Explosion-Proof Putty | 500K CNY | Tidak didukung |
| Langfang Pengchao Fireproof Materials Co., Ltd | 2009-09-16 | Inorganic Fireproof Blocking Material, Fireproof Bag Strap, Fireproof Trough Box | 60000K CNY | Tidak didukung |