| Jianshuo Plastic Products Factory, Mijia Township, Xiong County | 2013-10-08 | Cable Protection Pipe, Cpvc Power Pipe, Pe Water Supply Pipe | - | ไม่รองรับ |
| Cangzhou Huadun Pipeline Technology Co., Ltd | 2021-05-18 | Cable Protection Pipe, Plastic-Coated Steel Pipe, Hot Dip Plastic Conduit | 100000K CNY | ไม่รองรับ |
| Hebei Chenxi Plastic Products Co., Ltd | 2016-05-11 | Cable Protection Pipe, Double-Wall Corrugated Pipe, Pe Kra Pipe | 56880K CNY | ไม่รองรับ |
| Zaoqiang Haohui Environmental Protection Equipment Co., Ltd | 2017-05-10 | Cable Protection Pipe, Fiberglass Warning Ball, Stainless Steel Water Tank | 1000K CNY | รองรับ |
| Yunnan Gangzhenfeng Industrial Co., Ltd | 2024-01-18 | Cable Protection Pipe, Plastic-Coated Steel Pipe, Grouting Pipe | 5180K CNY | ไม่รองรับ |
| Hebei Wandong Environmental Protection Equipment Co., Ltd | 2024-05-13 | Cable Protection Pipe, Frp Cable Tray , Fiberglass Storage Tank | 3000K CNY | ไม่รองรับ |
| Hebei Yicheng Composite Materials Co., Ltd | 2023-11-08 | Cable Protection Pipe, Fiberglass Grating, Fiberglass Cable Tray | 3000K CNY | ไม่รองรับ |
| Baoding Tongjian Plastic Products Co., Ltd | 2008-08-05 | Cable Protection Pipe, Hot-Dip Plastic Coated Steel Pipe, Plum Blossom Tube | 60000K CNY | ไม่รองรับ |
| Shandong Luhai Pipe Industry Co., Ltd | 2018-08-27 | Cable Protection Pipe, Pvc Double Wall Corrugated Pipe, Cpvc Power Conduit | 10000K CNY | ไม่รองรับ |
| Shandong XunTeng Environmental Protection Building Materials Co., Ltd | 2021-01-15 | Cable Protection Pipe, Plastic Polyethylene Composite Pipe, Delivery Pipe | 3000K CNY | ไม่รองรับ |