| Langfang Dahao Fireproof Materials Co., Ltd | 2017-01-06 | Non Expansive Steel Fireproof Coating, Flexible Organic Sealing, Fire Blocking Module | 50000K CNY | Não compatível |
| Langfang Meixin Fireproof Materials Co., Ltd | 2016-03-22 | Non Expansive Steel Fireproof Coating, Fireproof Mud, Explosion-Proof Adhesive Mud, Fire Blocking Module | 21000K CNY | Não compatível |
| Langfang Gaoteng Fireproof Materials Co., Ltd | 2020-09-07 | Non Expansive Steel Fireproof Coating, Fireproof Board Coated Board, Fireproof Board | 500K CNY | Não compatível |
| Zhong'an Fire Equipment (Shandong) Co., Ltd | 2021-06-24 | Non Expansive Steel Fireproof Coating, Copper Fire Hydrant, Robot Track Chassis | 3500K CNY | Não compatível |
| Tianjin Haosen Technology Co., Ltd. Hebei Branch | 2022-06-10 | Non Expansive Steel Fireproof Coating, Fireproof Package Fireproof Package, Fireproof Mud Fireproof Board | - | Não compatível |
| Langfang Kaijiang Fireproof Materials Co., Ltd | 2021-01-25 | Non Expansive Steel Fireproof Coating, Tunnel Fireproof Coating, Cable Fireproof Coating | 30000K CNY | Não compatível |
| Langfang Xupu Energy saving Technology Co., Ltd | 2023-04-10 | Non Expansive Steel Fireproof Coating, Polyurethane Glass Wool Sandwich Panel, Fireproof Coating | 2000K CNY | Não compatível |
| Langfang Allies Fireproof Materials Co., Ltd | 2015-12-14 | Non Expansive Steel Fireproof Coating, Fireproof Coating, Fire Blocking Module | 18000K CNY | Não compatível |
| Langfang Yueteng Energy saving Technology Co., Ltd | 2023-11-07 | Non Expansive Steel Fireproof Coating, Wooden Structure Fireproof Coating, Removable Insulation Sleeve | 1000K CNY | Compatível |
| Langfang Pengchao Fireproof Materials Co., Ltd | 2009-09-16 | Non Expansive Steel Fireproof Coating, Fireproof Trough Box, Fireproof Bag | 60000K CNY | Não compatível |