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Finish the work of reducing antimony content in eco-friendly glass
By admin   2014/4/30 11:40:21   

Sb2O3 is introduced as clarifier during optical glass melting process.With some high-end customers limiting content of Sb and Sb2O3 in green purchase specifications and definiting them as eco-friendly restricted substances, NHG completed the work of reducing antimony content in  H-ZF, H-ZK, H-F series through formula and  process adjustment. The resulted products are not influenced in properties and quality and most of them contain no more than 700ppm Sb2O3, achieving environmental protection request. 



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