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| Henan Huiyihai Water Purification Materials Co., Ltd. | China national standards | MT | 280.31 | USD | 20250813 | 
| Chizhou Xinyu Chemical Technology Co., Ltd. | China national standards | MT | 266.29 | USD | 20250813 | 
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 189.21 | USD | 20250813 | 
| Henan Huiyihai Environmental Protection Technology Co., Ltd. | China national standards | MT | 273.3 | USD | 20250813 | 
| Henan Huiyihai Water Purification Materials Co., Ltd. | China national standards | MT | 280.04 | USD | 20250812 | 
| Henan Huiyihai Environmental Protection Technology Co., Ltd. | China national standards | MT | 273.04 | USD | 20250812 | 
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 189.03 | USD | 20250812 | 
| Shandong Fushengyong Trading Co., Ltd. | China national standards | MT | 280.04 | USD | 20250812 | 
| Quanzhou Harley Chemical Co., Ltd. | China national standards | MT | 308.1 | USD | 20250811 | 
| Chizhou Xinyu Chemical Technology Co., Ltd. | China national standards | MT | 266.09 | USD | 20250811 |