| Guangdong Longtao New Materials Co., Ltd | 2024-05-14 | Elevator Shaft Sound-Absorbing Panel, Pipeline Insulation Material, High Temperature Glass Wool | 5000K CNY | No compatible |
| Langfang Wanhui Thermal Insulation Materials Co., Ltd | 2024-02-19 | Elevator Shaft Sound-Absorbing Panel, Perlite Board, Aluminum Silicate Tube | 1000K CNY | No compatible |
| Langfang Paiheng Energy saving Technology Co., Ltd | 2023-05-16 | Elevator Shaft Sound-Absorbing Panel, Silicon Rock Slab, Foam Glass Insulation Board | 3000K CNY | Compatible |
| Langfang Rongte Building Materials Group Co., Ltd | 2014-11-03 | Elevator Shaft Sound-Absorbing Panel, Industrial Integrated Calcium Silicate Composite Board, Rubber And Plastic Pipe | 16000K CNY | No compatible |
| Hebei Fusheng Building Materials Co., Ltd | 2018-04-27 | Elevator Shaft Sound-Absorbing Panel, Huamei Rubber Sheet, Rubber And Plastic Pipe | 3000K CNY | Compatible |
| Hebei Ruide Energy saving Technology Co., Ltd | 2022-06-09 | Elevator Shaft Sound-Absorbing Panel, Nano Air Gel Blanket, Foam Plastic Board | 10000K CNY | No compatible |
| Hejian Yizhuo Thermal Insulation Materials Co., Ltd | 2020-12-10 | Elevator Shaft Sound-Absorbing Panel, Foam Glass, Insulated Pipe | 5000K CNY | No compatible |
| Nanjing Shengshi Haofa Construction Engineering Co., Ltd | 2019-11-29 | Elevator Shaft Sound-Absorbing Panel, Computer Room Mineral Wool Sound-Absorbing Board, Mineral Fiber Spraying | 5000K CNY | No compatible |
| Sichuan Jinggong Environmental Governance Co., Ltd | 2014-04-21 | Elevator Shaft Sound-Absorbing Panel, Acoustic Panel, Fan Soundproof Enclosure | 30000K CNY | Compatible |
| Langfang Bozhun Energy saving Technology Co., Ltd | 2023-05-24 | Elevator Shaft Sound-Absorbing Panel, Rubber And Plastic Board, Rubber And Plastic Pipe | 6800K CNY | No compatible |