| Hebei Xinda Technology Co., Ltd | 2020-07-06 | Sewage And Drainage Pipelines, Glass Steel Cooling Tower, Fiberglass Profiles | 10000K CNY | Not Supported |
| Hebei Xiong'an Ruishi Pipeline Technology Co., Ltd | 2023-08-08 | Sewage And Drainage Pipelines, Steel Strip Corrugated Pipe, Plum Blossom Tube | 10000K CNY | Not Supported |
| Xinjiang Mingbo Composite Materials Co., Ltd | 2026-02-13 | Sewage And Drainage Pipelines, Fiberglass Pump Station, Frp Pipe | 3000K CNY | Not Supported |
| Hebei Runsheng Composite Materials Co., Ltd | 2020-06-04 | Sewage And Drainage Pipelines, Frp Flat Panel, Resin Cover Plate | 3000K CNY | Not Supported |
| Hebei Huanrun Fluid Environmental Protection Equipment Co., Ltd | 2025-04-29 | Sewage And Drainage Pipelines, Cable Trench Cover, Profile | 3000K CNY | Not Supported |
| Hengshui Yingguan Rubber Products Co., Ltd | 2025-12-26 | Sewage And Drainage Pipelines, High-Pressure Rubber Hose, Large Diameter Suction And Discharge Pipe | 200K CNY | Not Supported |
| Hebei Jinshang Composite Materials Co., Ltd | 2022-08-17 | Sewage And Drainage Pipelines, Fiberglass Pump Station, Fiberglass Grating | 3000K CNY | Not Supported |
| Zaoqiang Haoyang Machinery Manufacturing Co., Ltd | 2020-01-07 | Sewage And Drainage Pipelines, Frp Cable Tray , Fiberglass Grating | 1000K CNY | Supported |
| Hebei Minxin Composite Materials Products Co., Ltd | 2022-10-12 | Sewage And Drainage Pipelines, Frp Pipe Fittings, Fiberglass Arch Cover Plate | 3000K CNY | Supported |
| Zaoqiang County Jinwo Environmental Protection Equipment Sales Factory (Individual Industrial and Commercial Household) | 2025-04-10 | Sewage And Drainage Pipelines, Fiberglass Grating, Fiberglass Drainage Channel | - | Not Supported |