Air dryer(Frozen Dryer, freezing dryer) Air dryer(Frozen Dryer, freezing dryer) Refrigerated Dryer is the most widely used and economic drying equipment. LC Series refrigerated dryer we manufactured is to ... drainage valve and the dry compressed air is obtained More information, pls contact me.Shanghai Landward Machine Co., Ltd. Air dryer(Frozen Dryer, freezing dryer)