English
Ammonium sulfate contains two nutrition elements: nitrogen and sulfur. It is mainly used as a kind of nitrogen fertilizer. Meanw
China¡¯s urea industry developed rapidly in recent years. Domestic capacity of urea reached *** million tonnes in 2009, and domes
Central Government File No. 1 (2010) specif
China National Chemical Information Center (CNCIC) has launched a series of annual