FeSO4. H2O 92% min.
Fe 30% min.
Water insoluble 0.2% max.
As 0.0005% max
CD 0.002% max.
Changsha hecom is the main producer and export of thiourea & barium products & manganese products etc. In China, hecom located in hunan, China, beside our own basic chemical products, we cooperate with more than twenties credit factories all over China. Because of the highest standards of products, competitive price and efficient services, we have gained higher reputation throughout China and overseas.
