| Langfang Dahao Fireproof Materials Co., Ltd | 2017-01-06 | Steel Fireproof Construction, Flexible Organic Sealing, Fire Blocking Module | 50000K CNY | غير مدعوم |
| Langfang Meixin Fireproof Materials Co., Ltd | 2016-03-22 | Steel Fireproof Construction, Fireproof Mud, Explosion-Proof Adhesive Mud, Fire Blocking Module | 21000K CNY | غير مدعوم |
| Langfang Gaoteng Fireproof Materials Co., Ltd | 2020-09-07 | Steel Fireproof Construction, Fireproof Board Coated Board, Fireproof Board | 500K CNY | غير مدعوم |
| Hebei Ruide Energy saving Technology Co., Ltd | 2022-06-09 | Steel Fireproof Construction, Nano Air Gel Blanket, Foam Plastic Board | 10000K CNY | غير مدعوم |
| Sichuan Weicheng Zhongtian Thermal Insulation Materials Co., Ltd | 2020-08-19 | Steel Fireproof Construction, Fireproof Coating, Polystyrene Board | 2000K CNY | غير مدعوم |
| Tianjin Haosen Technology Co., Ltd. Hebei Branch | 2022-06-10 | Steel Fireproof Construction, Fireproof Package Fireproof Package, Fireproof Mud Fireproof Board | - | غير مدعوم |
| Langfang Henghao Energy saving Technology Co., Ltd | 2022-06-06 | Steel Fireproof Construction, Lightweight Aggregate Concrete, Epoxy Glass Flake Coating | 2000K CNY | غير مدعوم |
| Langfang Xukun Fireproof Materials Co., Ltd | 2024-11-19 | Steel Fireproof Construction, Fireproof Coating, Fire Blocking Module | 500K CNY | غير مدعوم |
| Langfang Qijia Fireproof Materials Co., Ltd | 2024-12-12 | Steel Fireproof Construction, Glass Wool, Aluminized Film | 1000K CNY | غير مدعوم |
| Langfang Huode Fireproof Materials Co., Ltd | 2020-04-17 | Steel Fireproof Construction, Inorganic Blocking Material, Non Expanding Fireproof Coating | 28000K CNY | غير مدعوم |