| Hebei Qiqiang Composite Materials Co., Ltd | 2023-03-13 | Microporous Sound Barrier, Fiberglass Bird Proof Cover, Fiberglass Marker Post | 3000K CNY | Unterstützt |
| Hebei Fencing Traffic Protection Facilities Co., Ltd | 2021-04-01 | Microporous Sound Barrier, Municipal Guardrail, Slope Protection Net | 11000K CNY | Unterstützt |
| Baoding Panyi Transportation Engineering Co., Ltd | 2025-05-27 | Microporous Sound Barrier, Small Anechoic Chamber, Metal Microporous Sound Barrier | 5000K CNY | Nicht unterstützt |
| Changzhou Jingbo Sound Insulation Equipment Technology Co., Ltd | 2024-12-16 | Microporous Sound Barrier, Soundproof Room, Punch Press Soundproof Room | 800K CNY | Nicht unterstützt |
| Hefei Xingbairui New Material Technology Co., Ltd | 2023-12-14 | Microporous Sound Barrier, Stainless Steel Railing, Stainless Steel Composite Pipe Guardrail | 500K CNY | Unterstützt |
| Hebei Shu'an Environmental Protection Equipment Co., Ltd | 2015-03-04 | Microporous Sound Barrier, Silencer, Sound-Absorbing Sheet | 10000K CNY | Nicht unterstützt |
| Hebei Bubusheng Transportation Engineering Co., Ltd | 2019-10-25 | Microporous Sound Barrier, Anti-Throwing Net, Air Conditioning Outdoor Unit Soundproof Wall | 10000K CNY | Unterstützt |
| Anping County Aowo Metal Wire Mesh Products Co., Ltd | 2017-07-19 | Microporous Sound Barrier, Municipal Road Sound Barrier, Noise Reduction | 5000K CNY | Unterstützt |
| Anping County Zhongtu Metal Wire Mesh Products Co., Ltd | 2016-06-27 | Microporous Sound Barrier, Building Protection Climbing Net, Aluminum Plate Climbing Frame Punching Mesh | 5000K CNY | Nicht unterstützt |
| Hebei Chuanjiang Transportation Engineering Co., Ltd | 2016-09-29 | Microporous Sound Barrier, Noise Reduction, Sound Insulation, And Soundproof Screen, Industrial Sound Barrier | 10000K CNY | Unterstützt |