77340738
Nov 30, 2007
Feb 3, 2009
Silicon; tungstic acid; ammonium tungstate; calcium tungstate; zinc tungstate; molybdic acid; ammonium molybdate; sodium molybdate; ammonium dimolybdate; ammonium tetramolybdate; ammoinum heptamolybdate; copper carbonate; copper sulphate; chemicals for industrial purposes; chemicals for use in industry; chemicals for use in industry and science; bismuth
Chemicals