... 1.PLC control 2.automatical continuous operation 3. pharmaceutical industry centrifuge 4.horizontal scroll ... to protect the mechanical drive failure-free operation.3 set the automatic cooling system.4 set the ... , polysyrene, polyvinylacohol, sodium thiosulphate, copper sulphate, potash, tarteric acid, crystal soda, potash alum, trisodium phosphate, potassium bicarbonate, zinc sulphate, pentaerythrite ...