| Hebei Jingchuang Fiberglass Co., Ltd | 2018-08-02 | Highway Soundproof Wall, Frp Pipe Fittings, Fiberglass Column | 3100K CNY | Destekleniyor |
| Anping Muyuan Wire Mesh Manufacturing Co., Ltd | 2012-11-12 | Highway Soundproof Wall, Municipal Guardrail, Slope Protection Net | 40080K CNY | Destekleniyor |
| Anping County Yuetu Metal Products Co., Ltd | 2026-03-17 | Highway Soundproof Wall, Silencer, Soundproof Room | 5000K CNY | Desteklenmiyor |
| Shanghai Cengong Metal Wire Mesh Products Co., Ltd | 2016-03-01 | Highway Soundproof Wall, Municipal Guardrail, Workshop Isolation Net | 2000K CNY | Destekleniyor |
| Hebei Shu'an Environmental Protection Equipment Co., Ltd | 2015-03-04 | Highway Soundproof Wall, Silencer, Sound-Absorbing Sheet | 10000K CNY | Desteklenmiyor |
| Anping Peirun Wire Mesh Products Co., Ltd | 2023-11-13 | Highway Soundproof Wall, , Isolation Fence | 3000K CNY | Desteklenmiyor |
| Fujian Yangneng Building Materials Technology Co., Ltd | 2023-01-06 | Highway Soundproof Wall, Court Fence, Workshop Isolation Net | 10800K CNY | Desteklenmiyor |
| Hengshui Qijia Metal Components Co., Ltd | 2002-05-10 | Highway Soundproof Wall, Light Shielding Shed, Fully Enclosed Sound Barrier | 4000K CNY | Destekleniyor |
| Hefei Xingbairui New Material Technology Co., Ltd | 2023-12-14 | Highway Soundproof Wall, Stainless Steel Railing, Stainless Steel Composite Pipe Guardrail | 500K CNY | Destekleniyor |
| Baoding Panyi Transportation Engineering Co., Ltd | 2025-05-27 | Highway Soundproof Wall, Small Anechoic Chamber, Metal Microporous Sound Barrier | 5000K CNY | Desteklenmiyor |