| Item |
Standard(%) |
| Purity |
99.5min |
| Mg |
9.8min |
| Heavy Metals |
0.0002max |
| (Pb)Fe |
0.001max |
| Cl |
0.014max |
| PH |
5 - 9 |
Since 1998, TNN Group has been founded for 2 decades. Head quarter locates in Dalian -the most beautiful coastal city in Liaoning, China. Currently, TNN has 31 staffs, self-owned offices, cooperative laboratory, independent e-commerce platform, ISO9001 and CE certification, independent trademark and other high-level professional office equipment and institutional certifications, 3 overseas companies, 2 domestic offices and two subsidiaries.
Audited Supplier 
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