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Henan Kingway Chemicals Co.,Ltd.

Free member Since 2003

Henan, China

Environment Protect Grade Chromium Oxide: The environment protect grade chromium oxide can satisfy for Europe and American request of environment protect. Cr2O3:99% min. Cr6+:5 ppm max. Matter soluble in water:0.3% max. Residue on a sieve of .....

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