| Brand | Type | MFR | Application |
| BASELL | 23050 B | 0.2 | Drainage Pipe; Sewer Pipe |
| WANHUA | 23050 | 0.2 | Water pipe; |
| HENGLI | 23050 | 0.2 | Drainage Pipe; Sewer Pipe |
| YANCHANG | PN049 | 0.2 | Water pipe; |
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Strong research and development and production capacity in textile auxiliaries, polyurethane waterproofing additives and other materials.
| Brand | Type | MFR | Application |
| BASELL | 23050 B | 0.2 | Drainage Pipe; Sewer Pipe |
| WANHUA | 23050 | 0.2 | Water pipe; |
| HENGLI | 23050 | 0.2 | Drainage Pipe; Sewer Pipe |
| YANCHANG | PN049 | 0.2 | Water pipe; |
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