... HF can be used in high or low temperature. Application range is very wide, including drying, absorbing, cooling and regenerating ... in chemical metallurgic, coal gas and air separation industry.Ceramic Random PackingsCeramic random packings include Rasching ring, Cross partition ring, Pall ring ... 2525×25×31757852064000369Φ3838×38×41188047014000230Φ5050×50×572814506300135 Ceramic Random Packings