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| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 358.84 | USD | 20250828 | 
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 379.94 | USD | 20250828 | 
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 351.8 | USD | 20250828 | 
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 358.84 | USD | 20250828 | 
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 358.84 | USD | 20250828 | 
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 351.8 | USD | 20250828 | 
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 365.87 | USD | 20250828 | 
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 330.69 | USD | 20250828 | 
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 344.76 | USD | 20250828 | 
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 351.58 | USD | 20250827 |