Ammonium Sulphate, Barium Carbonate, Cobalt Oxide manufacturer / supplier in China, offering Industry Barium Carbonate Baco3 CAS No. 513-77-9 with Factory Price, China Manufacturer Barium High Purity Carbonate 99.2% Min in Stock, CAS 513-77-9 High Purity Barium Carbonate Powder for Ceramics/Frit/Brick/Glass for Ceramics and so on.