| Brand | Type | MFR | Application |
| Opal | 3804U | 4.0g/10min | Water tanks;Storage bins |
| Sinopec | 7151U | 5.0g/10min | Water tanks;Storage bins |
Strong research and development and production capacity in textile auxiliaries, polyurethane waterproofing additives and other materials.
| Brand | Type | MFR | Application |
| Opal | 3804U | 4.0g/10min | Water tanks;Storage bins |
| Sinopec | 7151U | 5.0g/10min | Water tanks;Storage bins |
Qingdao Hengke Fine Chemicals Co.,Ltd
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