| Cangzhou Quanhong Pipeline Technology Co., Ltd | 2022-03-10 | Steel Wire Mesh Skeleton Plastic Polyethylene Composite Pipe, Double-Wall Corrugated Pipe, Pvc Water Supply Pipe | 6180K CNY | Not Supported |
| Shandong Runxing Electric Power Pipe Co., Ltd | 2016-07-28 | Steel Wire Mesh Skeleton Plastic Polyethylene Composite Pipe, Pe Perforated Pipe, Pert2 Type Heating Pipeline | 20000K CNY | Supported |
| Hebei Xinshangyi Plastic Products Co., Ltd | 2025-11-11 | Steel Wire Mesh Skeleton Plastic Polyethylene Composite Pipe, Double-Wall Corrugated Pipe, Cpvc Power Pipe | 66880K CNY | Not Supported |
| Bazhou Yueqian Pipeline Technology Co., Ltd | 2026-08-12 | Steel Wire Mesh Skeleton Plastic Polyethylene Composite Pipe, Hdpe Silicon Core Pipe, Mpp Power Pipe | 10000K CNY | Not Supported |
| Shandong Kangyu Pipe Industry Co., Ltd | 2014-04-01 | Steel Wire Mesh Skeleton Plastic Polyethylene Composite Pipe | 106000K CNY | Not Supported |
| Heze Sanlei Plastic Industry Co., Ltd | 2006-03-23 | Steel Wire Mesh Skeleton Plastic Polyethylene Composite Pipe, Mesh Steel Strip Polyethylene Composite Pipe, Mesh Steel Strip Pipe | 100560K CNY | Not Supported |
| Shengmaidi Pipeline Technology Cangzhou Co., Ltd | 2021-01-20 | Steel Wire Mesh Skeleton Plastic Polyethylene Composite Pipe, Hdpe Steel Wire Mesh Skeleton Composite Pipe, Mining Wire Mesh | 108000K CNY | Not Supported |
| Hebei Luxiong Pipe Industry Co., Ltd | 2006-01-04 | Steel Wire Mesh Skeleton Plastic Polyethylene Composite Pipe, Grille Tube, Mpp Power Pipe | 45000K CNY | Not Supported |
| Chongzhou Shuyitong Building Materials Co., Ltd | 2020-04-26 | Steel Wire Mesh Skeleton Plastic Polyethylene Composite Pipe, Rainwater Pipe, Plastic Pipe | 1000K CNY | Not Supported |
| Shandong XunTeng Environmental Protection Building Materials Co., Ltd | 2021-01-15 | Steel Wire Mesh Skeleton Plastic Polyethylene Composite Pipe, Ventilation Duct, Pipeline | 3000K CNY | Not Supported |