| Langfang Dahao Fireproof Materials Co., Ltd | 2017-01-06 | Thick Tunnel Fire Coating, Flexible Organic Sealing, Fire Blocking Module | 50000K CNY | Không hỗ trợ |
| Guangdong Caixian New Materials Co., Ltd | 2020-09-27 | Thick Tunnel Fire Coating, Thermal Insulation, Bridge Deck Waterproofing | 5000K CNY | Không hỗ trợ |
| Langfang Pengchao Fireproof Materials Co., Ltd | 2009-09-16 | Thick Tunnel Fire Coating, Fireproof Trough Box, Fireproof Bag | 60000K CNY | Không hỗ trợ |
| Shandong Pengsheng Building Materials Co., Ltd | 2013-01-28 | Thick Tunnel Fire Coating, Asphalt Waterproofing Membrane, Waterproof Coating | 3000K CNY | Không hỗ trợ |
| Shandong Dingcheng New Coatings Co., Ltd | 2022-11-09 | Thick Tunnel Fire Coating, Ultra-Thin Type, Expansion Type Fireproof Coating | 6000K CNY | Không hỗ trợ |
| Langfang Senyao Thermal Insulation Materials Co., Ltd | 2020-04-16 | Thick Tunnel Fire Coating, Aerogel, Composite Concrete | 2000K CNY | Hỗ trợ |
| Weifang Changxu Building Materials Co., Ltd | 2016-07-22 | Thick Tunnel Fire Coating, Lotion Anti-Corrosion Mortar, Modified Asphalt Waterproof Adhesive | 60K CNY | Không hỗ trợ |
| Weifang Yuexu Waterproof Materials Co., Ltd | 2018-09-13 | Thick Tunnel Fire Coating, Binder, Wooden Bracket For Air Conditioning Water Pipe | 20K CNY | Không hỗ trợ |
| Langfang Yueteng Energy saving Technology Co., Ltd | 2023-11-07 | Thick Tunnel Fire Coating, Wooden Structure Fireproof Coating, Removable Insulation Sleeve | 1000K CNY | Hỗ trợ |
| Langfang Jialan Thermal Insulation Materials Co., Ltd | 2021-10-09 | Thick Tunnel Fire Coating, Aluminum Silicate, Glass Wool Products | 2000K CNY | Hỗ trợ |