... Zhongying's Packing is a good manufacture for Metal, Ceramic ,Plastic PackingsHigh strength, Good quality, low priceWe ... temperature conditions. Consequently the application range is very wide. The packing can be used in the drying columns, absorbing ... , coal gas industry, oxygen producing industry, etc. Ceramic Raschig rings Chemical AnalysisAl2O3SiO2Fe2O3CaOMgOK2O + Na2OOther17-23%>70%<1. ...